TY - GEN
T1 - Effects of post and early selection on SEC based transmit diversity systems with linear power loading
AU - Hasna, Mazen O.
AU - Yang, Hong Chuan
AU - Alouini, Mohamed Slim
PY - 2008
Y1 - 2008
N2 - Switch and examine combing (SEC) diversity scheme provides a lowest-complexity closed-loop transmit diversity solution. Furthermore, by probing sequentially available branches with different power loading levels, the SEC based transmit diversity systems can offer considerable amount of transmit power savings [1]. In this paper we propose two variants for the SEC with power loading schemes proposed earlier, namely: post and early selection schemes, and we analytically evaluate their performance and complexity. It is shown that early selection scheme has the advantage of lower average transmit power by selecting the best branch with the minimal power required, and the least number of channel probes. Post selection scheme on the other hand has less average feedback load at the expense of slightly higher average transmit power.
AB - Switch and examine combing (SEC) diversity scheme provides a lowest-complexity closed-loop transmit diversity solution. Furthermore, by probing sequentially available branches with different power loading levels, the SEC based transmit diversity systems can offer considerable amount of transmit power savings [1]. In this paper we propose two variants for the SEC with power loading schemes proposed earlier, namely: post and early selection schemes, and we analytically evaluate their performance and complexity. It is shown that early selection scheme has the advantage of lower average transmit power by selecting the best branch with the minimal power required, and the least number of channel probes. Post selection scheme on the other hand has less average feedback load at the expense of slightly higher average transmit power.
KW - Diversity techniques
KW - Power loading
KW - Selection combining and performance analysis
KW - Switched combining
UR - http://www.scopus.com/inward/record.url?scp=52949133083&partnerID=8YFLogxK
U2 - 10.1109/IWCMC.2008.40
DO - 10.1109/IWCMC.2008.40
M3 - Conference contribution
AN - SCOPUS:52949133083
SN - 9781424422029
T3 - IWCMC 2008 - International Wireless Communications and Mobile Computing Conference
SP - 225
EP - 229
BT - IWCMC 2008 - International Wireless Communications and Mobile Computing Conference
T2 - International Wireless Communications and Mobile Computing Conference, IWCMC 2008
Y2 - 6 August 2008 through 8 August 2008
ER -