Cooperative strategies and achievable rates for two user OFDMA channels

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Tarih

2011-12

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IEEE-INST Electrical Electronics Engineers Inc

Erişim Hakkı

info:eu-repo/semantics/closedAccess

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Özet

We propose three encoding strategies for a two user cooperative Orthogonal Frequency Division Multiple Access (OFDMA) system, based on block Markov superposition encoding (BMSE). We obtain the expressions for the resulting achievable rate regions for all three encoding strategies. We show that, by allowing for re-partitioning and re-encoding of the cooperative messages across subchannels, it is possible to better exploit the diversity created by OFDMA, and higher rates can be achieved. We demonstrate potential rate gains attained by cooperative OFDMA, through simulations.

Açıklama

This work was presented in part at the IEEE Global Communications Conference, Miami, FL, Dec 2010 [1], and was supported by The Scientific & Technological Research Council of Turkey, Grant 108E208. Digital Object Identifier 10.1109/TWC.2011.101811.102334

Anahtar Kelimeler

Decoding, Encoding, Fading channels, OFDM, Receivers, Resource management, Block Markov encoding, Diversity, User cooperation, OFDMA channels, Achievable rates, Block Markov superposition encoding, Cooperative messages, Cooperative strategies, Markov processes, OFDM modulation, Block codes, Cooperative communication

Kaynak

IEEE Transactions on Wireless Communications

WoS Q Değeri

Q1
Q1

Scopus Q Değeri

Cilt

10

Sayı

12

Künye

Bakım, İ. S. & Kaya, O. (2011). Cooperative strategies and achievable rates for two user OFDMA channels. IEEE Transactions on Wireless Communications, 10(12), 4029-4034. doi:10.1109/TWC.2011.101811.102334