Diversity-Multiplexing Trade-off for coordinated relayed uplink and direct downlink transmissions

There are two basic principles used in wireless network coding to design throughput-efficient schemes: (1) aggregation of communication flows and (2) interference is embraced and subsequently cancelled or mitigated. These principles inspire design of Coordinated Direct/Relay (CDR) schemes, where eac...

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Bibliographic Details
Main Authors: Chan Dai Truyen Thai, Popovski, P., Fan Sun, de Carvalho, E.
Format: Conference Proceeding
Language:English
Subjects:
Agglomeration
Conferences
Design engineering
Diversity methods
Downlink
Gain
Interference
Mathematical analysis
Multiplexing
Noise
Relays
Tradeoffs
Uplink
Uplinking
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Summary:There are two basic principles used in wireless network coding to design throughput-efficient schemes: (1) aggregation of communication flows and (2) interference is embraced and subsequently cancelled or mitigated. These principles inspire design of Coordinated Direct/Relay (CDR) schemes, where each basic transmission involves two flows to a direct and a relayed user. Considering a scenario with relayed uplink and direct downlink, we analyze the Diversity-Multiplexing Tradeoff (DMT) calculating either the exact value or both upper/lower bounds. The CDR scheme is shown to have a higher diversity gain than the reference scheme at any multiplexing gain.
DOI:10.1109/ComManTel.2013.6482368