TY - GEN
T1 - An achievable rate region for a multiuser half-duplex two-way channel
AU - Dash, Debashis
AU - Khoshnevis, Ahmad
AU - Sabharwal, Ashutosh
PY - 2006
Y1 - 2006
N2 - Feedback is known to enlarge the capacity region of a multiuser channel. However, none of the information theoretic analysis account for resource usage of the feedback link. In this paper, we adopt a novel two-way formulation for multiuser systems, which jointly designs the uplink and downlink communication. By assuming that nodes are half-duplex (in time) and feedback shares resources with data, all resource usage is accurately accounted in the system. Our achievable rate region shows that feedback is beneficial only if the the channel is two-way, i.e, there is data to be sent in both directions.
AB - Feedback is known to enlarge the capacity region of a multiuser channel. However, none of the information theoretic analysis account for resource usage of the feedback link. In this paper, we adopt a novel two-way formulation for multiuser systems, which jointly designs the uplink and downlink communication. By assuming that nodes are half-duplex (in time) and feedback shares resources with data, all resource usage is accurately accounted in the system. Our achievable rate region shows that feedback is beneficial only if the the channel is two-way, i.e, there is data to be sent in both directions.
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U2 - 10.1109/ACSSC.2006.354840
DO - 10.1109/ACSSC.2006.354840
M3 - Conference contribution
AN - SCOPUS:47049125386
SN - 1424407850
SN - 9781424407859
T3 - Conference Record - Asilomar Conference on Signals, Systems and Computers
SP - 707
EP - 711
BT - Conference Record of the 40th Asilomar Conference on Signals, Systems and Computers, ACSSC '06
T2 - 40th Asilomar Conference on Signals, Systems, and Computers, ACSSC '06
Y2 - 29 October 2006 through 1 November 2006
ER -