Joint adaptive modulation and diversity combining with feedback error compensation
Date
2008-08-08T19:54:17Z
Authors
Choi, Seyeong
Yang, Hong-Chuan
Alouini, Mohamed-Slim
Qaraqe, Khalid A.
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Abstract
This report investigates the effect of feedback error on the performance of the joint adaptive
modulation and diversity combining (AMDC) scheme which was previously studied with an assumption
of error-free feedback channels. We also propose to utilize adaptive diversity to compensate for the
performance degradation due to feedback error. We accurately quantify the performance of the joint
AMDC scheme in the presence of feedback error, in terms of the average number of combined paths,
the average spectral efficiency, and the average bit error rate. Selected numerical examples are presented
and discussed to illustrate the effectiveness of the proposed feedback error compensation strategy with
adaptive combining. It is observed that the proposed compensation strategy can offer considerable error
performance improvement with little loss in processing power and spectral efficiency in comparison
with the no compensation case.