... rapid deployment of High Speed Downlink Packet Access (HSDPA) calls for automated optimization in network planning. In this paper, we study HSDPA performance improvement by means of optimizing base station antenna configuration. We consider networks with mixed HSDPA and Release 99 (R99) services that share the ... configuration, service coverage, power sharing between R99 and HSDPA, and HSDPA performance, taking into account the influence of cell size and user distribution on HSDPA user throughput. The cost function is targeted at ...
Tópico(s): Advanced MIMO Systems Optimization
2008 - Institute of Electrical and Electronics Engineers | IEEE Vehicular Technology Conference
Tero Isotalo, Jukka Lempiäinen,
... of the paper is to study performance of HSDPA in indoor environment, and to provide guidelines for HSDPA coverage and capacity planning and antenna configurations selection. Field measurements with a HSDPA data card, field measurement software, and a fully functional HSDPA enabled UMTS network were performed. Indoor corridor environment ... impact of different distributed antenna configurations on a HSDPA performance. In addition, pico cell configuration is compared ... configuration, and the effect of coverage limitations on HSDPA capacity is studied. The results show, that ensuring ...
Tópico(s): Advanced MIMO Systems Optimization
2007 - Institute of Electrical and Electronics Engineers | IEEE Vehicular Technology Conference
David Gómez‐Barquero, Ana Fernandez-Aguilella, Narcís Cardona,
... in the downlink of the 3G standard after HSDPA (high-speed downlink packet access). Whereas HSDPA supports high speed point-to-point (p-t- ... of files in future 3G mobile networks with HSDPA and MBMS. Delivery configurations studied include: only p-t-p transmissions with HSDPA (one for each active user), a single p- ... using both jointly in a hybrid approach employing HSDPA for error repair of the MBMS transmission. The ... system capacity is maximized. We investigate the optimum HSDPA and MBMS transmission configurations as a function of ...
Tópico(s): Wireless Communication Networks Research
2009 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Broadcasting
Andreas Mäder, Dirk Staehle, Markus Spahn,
In UMTS networks, HSDPA users share radio resources like transmit power and OSVF codes with QoS-users, which use dedicated channels as primary ... method. Several options for the resource allocation for HSDPA exist, which center around the question whether resources should be exclusively reserved for HSDPA, or whether the resources for the HSDPA should be adapted to the requirements of the ... of three radio resource allocation schemes on the HSDPA and on the dedicated channel performance by means ... show the trade-offs between dedicated channel and HSDPA performance and the sensitivity of the system against ...
Tópico(s): Advanced Queuing Theory Analysis
2007 - Institute of Electrical and Electronics Engineers | IEEE Vehicular Technology Conference
Bader Al-Manthari, Hossam S. Hassanein, Nidal Nasser,
... boost the support for such high data rates, HSDPA, labeled as a 3.5G wireless system, has ... introduced in Release 5 of UMTS technical specifications. HSDPA is a definite step toward meeting the "anywhere, anytime, and in any form" 4G communication concept. HSDPA promises a peak data rate of up to ... In order to support such high data rates, HSDPA relies on many new technologies, among which is ... and depth related issues of packet scheduling in HSDPA, discuss state-of-the-art HSDPA scheduling algorithms ...
Tópico(s): Wireless Communication Networks Research
2007 - Institute of Electrical and Electronics Engineers | IEEE Network
Klaus I. Pedersen, Frank Frederiksen, Troels Kolding, Tako Freerk Lootsma, Preben Mogensen,
... system performance of high-speed downlink packet access (HSDPA) and Release 99 (Rel'99) dedicated channels (DCH) ... sharing of the cell carrier transmit power between HSDPA and DCH, which is conditioned on a certain number of channelization codes that are reserved for HSDPA transmission, is addressed. Detailed network-performance results are ... to layer 3. Compared to a scenario without HSDPA, the total cell throughput can be increased by ... 35% of the maximum cell transmit power to HSDPA transmission. These results are obtained for a macrocellular ...
Tópico(s): Advanced MIMO Systems Optimization
2007 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Vehicular Technology
Thushara Weerawardane, Andreas Timm‐Giel, Gennaro Ciro Malafronte, Durastante Gianluca, Stephan Hauth, Carmelita Görg,
High speed downlink packet access (HSDPA) is an extension of the Universal Mobile Telecommunications System (UMTS) technology of 3GPP Rel-99, with the objective to increase the ... of congestion at the Iub interface on the HSDPA performance. The data flows should be adequately controlled ... and the delay reference time (DRT) fields of HSDPA data frame. In addition to these, a third congestion detection mechanism based of Checksum of HSDPA data frame is considered. This paper discusses a ... can be avoided, and hence the performance of HSDPA network can be significantly improved in all aspects.
Tópico(s): Network Traffic and Congestion Control
2008 - Institute of Electrical and Electronics Engineers | IEEE Vehicular Technology Conference
Martin Wrulich, Werner Weiler, Markus Rupp,
... advantages in an existing WCDMA network is that HSDPA (high speed downlink packet access) can be operated ... this paper, we investigate the throughput performance of HSDPA in a network, in which also Release 4 ... by utilizing a system level modeling of the HSDPA transmission if a Rake receiver is used, together ... able to deduce the optimum power split between HSDPA and Release 4 to maximize the overall cell ... results offer a more sophisticated understanding of the HSDPA network performance, and can be used by network ...
Tópico(s): Advanced Wireless Communication Techniques
2008 - Institute of Electrical and Electronics Engineers | IEEE Vehicular Technology Conference
Petteri Lundén, Jussi Aijanen, Kari Aho, Tapani Ristaniemi,
... level performance in High Speed Downlink Packet Access (HSDPA) network. The main purpose is to determine how VoIP over HSDPA performance is affected by HSDPA handover i.e. serving High Speed Downlink Shared ... velocities lead to capacity loss for VoIP over HSDPA. Handover delays started to have significant effect only ... incurs only 1% resource overhead when transmitted over HSDPA.
Tópico(s): Advanced MIMO Systems Optimization
2008 - Institute of Electrical and Electronics Engineers | IEEE Vehicular Technology Conference
Srisakul Thakolsri, Shoaib Khan, Eckehard Steinbach, Wolfgang Kellerer,
... CLD) framework for High Speed Downlink Packet Access (HSDPA). The proposed scheme aims at maximizing the user ... taking advantage of the link adaptation mechanism of HSDPA and the rate adaptation capability of multimedia applications. ... First, we describe the multiuser rate region of HSDPA by constructing a long-term radio link layer ... also compare our approaches to a non-optimized HSDPA system. The performance comparison is made by simulation using a software implementation of an actually deployed HSDPA system. Results show that our QoE-based approach ...
Tópico(s): Wireless Communication Networks Research
2009 - International Communication Association | Journal of Communications
Tero Isotalo, P. Lahdekorpi, Jukka Lempiäinen,
... the performance of high-speed downlink packet access (HSDPA) in an indoor environment. The capabilities of an ... show that compared to dedicated indoor systems, similar HSDPA performance can be provided by extending macrocellular coverage ... dBm ensures a 2500 kbps throughput for shared HSDPA connections. Improving the coverage above −80 dBm seems to provide only small advantage in HSDPA throughput. Of course, the pilot planning thresholds may ...
Tópico(s): Wireless Communication Networks Research
2009 - Springer Nature | EURASIP Journal on Wireless Communications and Networking
Christian Mehlführer, Sebastian Caban, Markus Rupp,
... input-multiple-output High-Speed Downlink Packet Access (HSDPA) throughput measurements. These measurements were carried out in ... the standard compliant single- and two-transmit-antenna HSDPA schemes, we defined and measured a four-transmit-antenna HSDPA scheme to explore future enhancements of the standard. ... Thus, optimizations in the standard could further improve HSDPA performance.
Tópico(s): Advanced MIMO Systems Optimization
2010 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Vehicular Technology
Jaemin Kang, Il Hyung Shin, Yoonseo Koo, Min Yang Jung, Gil Joon Suh, Hee Chan Kim,
... Biotelemetry System for Emergency Care(UIBSEC) using a HSDPA(High Speed Downlink Packet Access) modem to be ... transferred to a doctor's PC through the HSDPA and TCP/IP networks using stand-alone HSDPA modem. Most prominent feature of the developed system is that it is based on the HSDPA backbone networks available in Korea now, through which ...
Tópico(s): Advanced MIMO Systems Optimization
2007 - Institute of Electrical and Electronics Engineers | Conference proceedings
Klaus I. Pedersen, Preben Mogensen, Troels Kolding,
... challenges and opportunities for implementing QoS control for HSDPA. In this article we present different options for implementing QoS over HSDPA ranging from quality-based HSDPA access control algorithms to QoS-aware Node-B ... with network performance results for different services over HSDPA.
Tópico(s): Advanced MIMO Systems Optimization
2006 - Institute of Electrical and Electronics Engineers | IEEE Communications Magazine
Helga Birgit Bjørnarå, Monica Klungland Torstveit, Elling Bere,
... Healthy and Sustainable Dietary and Physical Activity habits (HSDPA) score, incorporating four selected dietary and physical activity ... Secondly, to describe the experiences from constructing the HSDPA score. Methods: Relevant literature covering the four aspects ... diet, physical activity, health and environmental sustainability, the HSDPA score was constructed including one subscale for each ... range from 0–10 points, hence the total HSDPA score ranged from 0–40 points. Results: In ... we believe that the rationale for creating the HSDPA score is reasonable. Still, emphasizing fewer, but the ...
Tópico(s): Nutritional Studies and Diet
2018 - SAGE Publishing | Scandinavian Journal of Public Health
Suleiman Y. Yerima, Khalid Al‐Begain,
... i.e. the High Speed Downlink Packet Access (HSDPA) which enhances 3G UMTS to support high-speed ... services. Unlike earlier systems, UMTS-evolved systems from HSDPA and beyond incorporate mechanisms such as packet scheduling ... user session. The dynamic buffer management scheme for HSDPA multimedia sessions with aggregated real-time and non real-time flows is investigated via extensive HSDPA simulations. The impact of the scheme on end- ...
Tópico(s): Network Traffic and Congestion Control
2009 - | IAENG international journal of computer science
Joseph Gomes, Mira Yun, Hyeong‐Ah Choi, Jae-Hoon Kim, JungKyo Sohn, Hyeong In Choi,
... features such as high-speed downlink packet access (HSDPA) for WCDMA networks. The role of the MAC-hs scheduler is vital in HSDPA in improving overall system performance. Using opportunistic scheduling ... aware policy driven scheduling algorithms. We developed an HSDPA system in OPNET, and implemented our scheduling algorithms ...
Tópico(s): Cooperative Communication and Network Coding
2007 - Institute of Electrical and Electronics Engineers | IEEE Vehicular Technology Conference
David Martín‐Sacristán, José F. Monserrat, Javier Gozálvez, Narcís Cardona,
... channel estimation inaccuracy on the performance of an HSDPA system. This study provides some results from system ... a very complete dynamic simulator which models an HSDPA system full compliant with specifications. This emulator allows ... the intrinsic constraints of a WCDMA system like HSDPA have been also taken into account, i.e. ...
Tópico(s): Advanced MIMO Systems Optimization
2007 - Institute of Electrical and Electronics Engineers | IEEE Vehicular Technology Conference
Giovanni Giambene, Samuele Giannetti, Cristina Párraga Niebla, Michal Ries, Aduwati Sali,
... on Satellite - High Speed Downlink Packet Access (S-HSDPA). A geostationary bent-pipe satellite has been considered. ... schemes has been compared in the envisaged S-HSDPA scenario, considering video streaming and Web traffic flows. ... considering the physical medium behavior and different S-HSDPA scheduling schemes.
Tópico(s): Advanced Wireless Network Optimization
2007 - IOS Press | Space Communications
Timo Nihtilä, Janne Kurjenniemi, Elena Virtej,
... interference suppression with high-speed downlink packet access (HSDPA). The evaluation is performed with and without receive ... simulator which includes the modeling of LMMSE equalizer, HSDPA functionality, UE mobility and the most fundamental radio resource management algorithms. The used system scenario is HSDPA network with proportional fair scheduler. The results indicate ...
Tópico(s): Advanced Wireless Network Optimization
2007 - Institute of Electrical and Electronics Engineers | Proceedings - IEEE Symposium on Computers and Communications/IEEE Symposium on Computers and Communications
... interface in the high-speed downlink packet access (HSDPA) wireless system. In the literature, studies of the ... fair scheduling) is conducted. Analytical models to evaluate HSDPA cell capacity, user bit rate, and interaction with ... is shown that the overall capacity achieved by HSDPA is not as affected by the TCP layer. ...
Tópico(s): Advanced MIMO Systems Optimization
2006 - Institute of Electrical and Electronics Engineers | IEEE Journal on Selected Areas in Communications
Klaus I. Pedersen, Preben Mogensen, Troels Kolding,
... challenges and opportunities for implementing QoS control for HSDPA. In this paper we present different options for implementing QoS over HSDPA, and we focus particularly on the shared responsibility ... with network performance results for different services over HSDPA, ranging from simple best effort traffic, to constant ...
Tópico(s): Advanced MIMO Systems Optimization
2006 - Institute of Electrical and Electronics Engineers | IEEE Vehicular Technology Conference
A. Farrokh, Vallidevi Krishnamurthy,
High-speed downlink packet access (HSDPA) achieves high data rates and high spectral efficiency by using adaptive modulation and coding schemes and employing multicode CDMA. In this paper, we present opportunistic algorithms for scheduling HSDPA users and selecting modulation/coding and multicode schemes ... introduce a stochastic discrete event model for a HSDPA system. By employing the discrete event model, we ...
Tópico(s): Wireless Communication Networks Research
2006 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Multimedia
HSDPA (high-speed downlink packet access) is an evolved UMTS packet scheme that delivers increased user peak ... and quality of service. A key technique supporting HSDPA is adaptive modulation and coding (AMC), in which ... the accuracy of AMC and the performance of HSDPA. This letter proposes channel adaptive CQI reporting schemes ...
Tópico(s): Advanced Wireless Communication Techniques
2006 - IEEE Communications Society | IEEE Communications Letters
Kyungsu Ko, Daewon Lee, Moohong Lee, Hwang Lee,
... system capacity, the high speed downlink packet access (HSDPA) was proposed in the UMTS standard. One of key techniques supporting the HSDPA services is the adaptive modulation and coding (AMC) ... the accuracy of AMC and the performance of HSDPA. This paper proposes a novel SIR to CQI ...
Tópico(s): Telecommunications and Broadcasting Technologies
2006 - Institute of Electrical and Electronics Engineers | IEEE Vehicular Technology Conference
... standard is the high speed downlink packet access (HSDPA). One of key techniques supporting HSDPA is the adaptive modulation and coding (AMC) in ... the accuracy of AMC and the performance of HSDPA. This letter proposes an enhanced CQI reporting scheme ...
Tópico(s): Wireless Communication Networks Research
2005 - IEEE Communications Society | IEEE Communications Letters
Sungjin James Kim, Hojin Kim, Kwang Bok Lee,
... improve the 3GPP high speed downlink packet access (HSDPA) channel by employing multiple antennas at both the ... such as Qualcomm's High Data Rate and HSDPA, which is a simpler technique than STMA. Furthermore, ... present the unified optimal power allocation strategy for HSDPA MIMO schemes by exploiting the similarity of multiple ...
Tópico(s): Wireless Communication Networks Research
2005 - Electronics and Telecommunications Research Institute | ETRI Journal
Gutavo Florido, Fidel Liberal, José Oscar Fajardo,
- HSDPA defines a new High Speed Shared Channel (HS-DSCH) which allows for practical speeds up to ... Mbps [1]. Among all the changes introduced by HSDPA, the most prominent ones regarding QoS are the ... Hybrid ARQ” and the quick “Scheduling” algorithms. In HSDPA the RNC is still the responsible for making ...
Tópico(s): Advanced MIMO Systems Optimization
2009 - | Network Protocols and Algorithms
Mats Folke, Sara Landström, Ulf Bodin, Stefan Wänstedt,
HSDPA (high-speed downlink packet access), introduced in WCDMA release 5, provides a high-bandwidth shared channel ... The short TTI together with appropriate scheduling enable HSDPA to support efficient multiplexing of traffic. We explain ... high-speed downlink shared channel (HS-DSCH) of HSDPA. We consider both cell throughput and user satisfaction. ...
Tópico(s): Wireless Networks and Protocols
2007 - Institute of Electrical and Electronics Engineers | IEEE Vehicular Technology Conference
Rui Deng, Guizhong Liu, Jian Yang,
... scheduling algorithm for real-time video transmission over HSDPA is studied. The utility here refers to the ... packet utility over all the users under the HSDPA physical resource constraints . In order to obtain an ... than the existing ones for video transmission over HSDPA.
Tópico(s): Cooperative Communication and Network Coding
2015 - Institute of Electrical and Electronics Engineers | IEEE Transactions on Multimedia