Adaptive modulation using differential STBC in Rayleigh fading channel

Authors:
Chang Byun;Gary J. Saulnier
Affiliations:
ECSE Department, Rensselaer Polytechnic Institute, Troy, NY;ECSE Department, Rensselaer Polytechnic Institute, Troy, NY
Venue:
MILCOM'06 Proceedings of the 2006 IEEE conference on Military communications
Year:
2006

Citing 6
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Abstract

In this paper, we consider adaptive modulation (AM) using differential space-time block codes (DSTBC) in the presence of Rayleigh fading channel. A MIMO system, DSTBC can be simplified to be a multiple SISO (scalar) system with a diversity gain. A near-instantaneous signal-to-noise (SNR) ratio at the DSTBC receiver is used as a channel quality estimate. Using the channel quality, the system is able to choose a set of SNR thresholds that maximize throughput and keeps the target bit-error-rate (BER) for a given average transmitted SNR.