TY - GEN
T1 - Joint adaptive transmission and combining with optimized rate and power allocation
AU - Gjendemsjø, Anders
AU - Yang, Hong Chuan
AU - Alouini, Mohamed Slim
AU - Øien, Geir E.
PY - 2006
Y1 - 2006
N2 - We consider the problem of finding optimal transmission rates and power allocation under the framework of diversity combining. Capitalizing on recent results for both link adaptation schemes and adaptive combining, we design and analyze two joint link adaptation and diversity combining schemes. Based on the channel fading, the proposed schemes adaptively select both the signal constellation and diversity combiner structure. We show that the novel schemes provide significant throughput gains compared to existing joint adaptive QAM and diversity schemes. Further, contrary to previous results on power control for discrete rate link adaptation, power control does not give significant average spectral efficiency gains in this jointly adaptive setting. However, power control yields significant outage probability gains over the constant power schemes.
AB - We consider the problem of finding optimal transmission rates and power allocation under the framework of diversity combining. Capitalizing on recent results for both link adaptation schemes and adaptive combining, we design and analyze two joint link adaptation and diversity combining schemes. Based on the channel fading, the proposed schemes adaptively select both the signal constellation and diversity combiner structure. We show that the novel schemes provide significant throughput gains compared to existing joint adaptive QAM and diversity schemes. Further, contrary to previous results on power control for discrete rate link adaptation, power control does not give significant average spectral efficiency gains in this jointly adaptive setting. However, power control yields significant outage probability gains over the constant power schemes.
UR - http://www.scopus.com/inward/record.url?scp=48749108426&partnerID=8YFLogxK
U2 - 10.1109/SPAWC.2006.346392
DO - 10.1109/SPAWC.2006.346392
M3 - Conference contribution
AN - SCOPUS:48749108426
SN - 078039710X
SN - 9780780397101
T3 - IEEE Workshop on Signal Processing Advances in Wireless Communications, SPAWC
BT - 2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, SPAWC
T2 - 2006 IEEE 7th Workshop on Signal Processing Advances in Wireless Communications, SPAWC
Y2 - 2 July 2006 through 5 July 2006
ER -