Title :
Adaptive Modulation using Differential STBC in Rayleigh Fading Channel
Author :
Byun, Chang ; Saulnier, Gary J.
Author_Institution :
ECSE Dept., Rensselaer Polytech. Inst., Troy, NY
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
Keywords :
MIMO communication; Rayleigh channels; adaptive modulation; block codes; error statistics; radio receivers; space-time codes; BER; DSTBC receiver; MIMO system; Rayleigh fading channel; adaptive modulation; bit-error-rate; differential space-time block codes; AWGN; Bit error rate; Demodulation; Fading; Feedback; Rayleigh channels; Receiving antennas; Throughput; Transmitters; Transmitting antennas;
Conference_Titel :
Military Communications Conference, 2006. MILCOM 2006. IEEE
Conference_Location :
Washington, DC
Print_ISBN :
1-4244-0617-X
Electronic_ISBN :
1-4244-0618-8
DOI :
10.1109/MILCOM.2006.302494
