TY - GEN
T1 - A genetic algorithm based finger selection scheme for UWB MMSE rake receivers
AU - Gezici, Sinan
AU - Chiang, Mung
AU - Poor, H. Vincent
AU - Kobayashi, Hisashi
PY - 2005
Y1 - 2005
N2 - Due to a large number of multipath components in a typical ultra wideband (UWB) system, selective Rake (SRake) receivers, which combine energy from a subset of multipath components, are commonly employed. In order to optimize system performance, an optimal selection of multipath components to be employed at fingers of an SRake receiver needs to be considered. In this paper, this finger selection problem is investigated for a minimum mean square error (MMSE) UWB SRake receiver. Since the optimal solution is NP hard, a genetic algorithm (GA) based iterative scheme is proposed, which can achieve near-optimal performance after a reasonable number of iterations. Simulation results are presented to compare the performance of the proposed finger selection algorithm with those of the conventional and optimal schemes.
AB - Due to a large number of multipath components in a typical ultra wideband (UWB) system, selective Rake (SRake) receivers, which combine energy from a subset of multipath components, are commonly employed. In order to optimize system performance, an optimal selection of multipath components to be employed at fingers of an SRake receiver needs to be considered. In this paper, this finger selection problem is investigated for a minimum mean square error (MMSE) UWB SRake receiver. Since the optimal solution is NP hard, a genetic algorithm (GA) based iterative scheme is proposed, which can achieve near-optimal performance after a reasonable number of iterations. Simulation results are presented to compare the performance of the proposed finger selection algorithm with those of the conventional and optimal schemes.
KW - Genetic algorithm (GA)
KW - Impulse radio (IR)
KW - MMSE rake receiver
KW - Optimization
KW - Ultra-wideband (UWB)
UR - http://www.scopus.com/inward/record.url?scp=33750992239&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=33750992239&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:33750992239
SN - 078039397X
SN - 9780780393974
T3 - ICU 2005: 2005 IEEE International Conference on Ultra-Wideband, Conference Proceedings
SP - 164
EP - 169
BT - ICU 2005
T2 - ICU 2005: 2005 IEEE International Conference on Ultra-Wideband
Y2 - 5 September 2005 through 8 September 2005
ER -