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Advances in Cooperative Single-Carrier FDMA Communications: Beyond LTE-Advanced

2015; Institute of Electrical and Electronics Engineers; Volume: 17; Issue: 2 Linguagem: Inglês

10.1109/comst.2014.2364184

2373-745X

Jiayi Zhang, Lie‐Liang Yang, Lajos Hanzo, Hamid Gharavi,

Advanced MIMO Systems Optimization

In this paper, we focus our attention on the cooperative uplink transmissions of systems beyond the LTE-Advanced initiative. We commence a unified treatment of the principle of single-carrier frequency-division multiple-access (FDMA) and the similarities and dissimilarities, advantages, and weakness of the localized FDMA, the interleaved FDMA, and the orthogonal FDMA systems are compared. Furthermore, the philosophy of both user cooperation and cooperative single-carrier FDMA is reviewed. They are investigated in the context of diverse topologies, transmission modes, resource allocation, and signal processing techniques applied at the relays. Benefits of relaying in LTE-Advanced are also reviewed. Our discussions demonstrate that these advanced techniques optimally exploit the resources in the context of cooperative single-carrier FDMA system, which is a promising enabler for various uplink transmission scenarios.