TY - GEN
T1 - Analysis of Generalized Switch and Examine Combining (GSEC) over Rayleigh fading paths with unequal average SNR
AU - Yang, Hong Chuan
AU - Alouini, Mohamed Slim
PY - 2005
Y1 - 2005
N2 - In diversity-rich environments, there is a trade-off between performance and complexity. Optimal combining scheme, while delivering the best performance, introduces additional hardware complexity. Generalized switch and examine combining (GSEC) scheme was proposed as a low-complexity diversity technique for diversity-rich environments [1]. In this paper, we extend the study of GSEC to independent and non-identically distributed (i.n.d.) fading path environments. In particular, after discussing the mode of operation of GSEC over i.n.d. paths, we derive closed-form expression for the moment generating function (MGF) of GSEC combined SNR. We then apply it to analyze GSEC error performance in Rayleigh fading environments. Selected numerical examples are included to demonstrate various design tradeoffs.
AB - In diversity-rich environments, there is a trade-off between performance and complexity. Optimal combining scheme, while delivering the best performance, introduces additional hardware complexity. Generalized switch and examine combining (GSEC) scheme was proposed as a low-complexity diversity technique for diversity-rich environments [1]. In this paper, we extend the study of GSEC to independent and non-identically distributed (i.n.d.) fading path environments. In particular, after discussing the mode of operation of GSEC over i.n.d. paths, we derive closed-form expression for the moment generating function (MGF) of GSEC combined SNR. We then apply it to analyze GSEC error performance in Rayleigh fading environments. Selected numerical examples are included to demonstrate various design tradeoffs.
KW - Diversity Rich Environments
KW - Diversity Techniques
KW - Performance analysis
KW - Switched Diversity
UR - http://www.scopus.com/inward/record.url?scp=28344450822&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:28344450822
SN - 0780390199
SN - 9780780390195
T3 - 2005 International Conference on Wireless and Optical Communications Networks
SP - 420
EP - 424
BT - 2005 International Conference on Wirelessand Optical Communications Networks
T2 - 2005 International Conference on Wirelessand Optical Communications Networks
Y2 - 6 March 2005 through 8 March 2005
ER -