Cooperative strategies and achievable rates for two user OFDMA channels
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Dosyalar
Tarih
2011-12
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
IEEE-INST Electrical Electronics Engineers Inc
Erişim Hakkı
info:eu-repo/semantics/closedAccess
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
Scopus Q Değeri
Q1
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
