Distributed detection for diversity reception of fading signals in noise

作     者：Blum, RS 

作者机构：Lehigh Univ Dept Comp Sci & Elect Engn Bethlehem PA 18015 USA 

出 版 物：《IEEE TRANSACTIONS ON INFORMATION THEORY》 (IEEE Trans. Inf. Theory)

年 卷 期：1999年第45卷第1期

页      面：158-164页

核心收录：

学科分类：0808[工学-电气工程] 08[工学] 0701[理学-数学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：National Science Foundation, NSF, (MIP-9703730) Office of Naval Research, ONR, (N00014-97-1-0774) 

主　　题：decentralized detection distributed detection noncoherent BFSK quantized diversity reception 

摘      要：A multiple-antenna diversity scheme is investigated for digital communications. Antenna observations are immediately quantized and sent to a fusion center. At the fusion center, the quantized observations are combined to form a final, decision on which symbol was transmitted. The optimum reception scheme is described for the case where frequency-shift keying is employed and where slow Rayleigh fading and Gaussian additive noise are present. Two cases are studied. In the first case, an accurate estimate of the signal-to-noise ratio is available at each receiver. In the second case, estimates are not available. Results indicate that two- or three-bit quantizations may be most appropriate. Further, if binary decisions are made at each antenna, performance may not improve if an estimate of the signal-to-noise ratio is available at each antenna or if two antennas are used instead of one.