Implications of the half-duplex constraint on relay-aided cooperation using rateless codes
Data(s) |
31/01/2010
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Resumo |
The half-duplex constraint, which mandates that a cooperative relay cannot transmit and receive simultaneously, considerably simplifies the demands made on the hardware and signal processing capabilities of a relay. However, the very inability of a relay to transmit and receive simultaneously leads to a potential under-utilization of time and bandwidth resources available to the system. We analyze the impact of the half-duplex constraint on the throughput of a cooperative relay system that uses rateless codes to harness spatial diversity and efficiently transmit information from a source to a destination. We derive closed-form expressions for the throughput of the system, and show that as the number of relays increases, the throughput approaches that of a system that uses more sophisticated full-duplex nodes. Thus, half-duplex nodes are well suited for cooperation using rateless codes despite the simplicity of both the cooperation protocol and the relays. |
Formato |
application/pdf |
Identificador |
http://eprints.iisc.ernet.in/39018/1/Implications.pdf Meshram, R and Mehta, NB (2010) Implications of the half-duplex constraint on relay-aided cooperation using rateless codes. In: 2010 National Conference on Communications (NCC), 29-31 Jan. 2010, Chennai. |
Publicador |
IEEE |
Relação |
http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5430224 http://eprints.iisc.ernet.in/39018/ |
Palavras-Chave | #Electrical Communication Engineering |
Tipo |
Conference Paper PeerReviewed |