期刊名称：International Journal of Advanced Research In Computer Science and Software Engineering
印刷版ISSN：2277-6451
电子版ISSN：2277-128X
出版年度：2012
卷号：2
期号：5
出版社：S.S. Mishra
摘要：In o rder to i mpro ve t he o ptimizing efficiency, one di mensiona l bli nd -walk ing o ptimizati on metho d is proposed, which ca n be real ized by halving st ep o r doubling step fo r the applicability test conditio n of the sens ing po int. The optimum point, then, can b e rea ched at high rate by do ubli ng step a nd converged by halvi ng st ep. C urrent po int shoul d be upda ted in whole desig n sp ace. The flow chart o f this algo rithm wit h operati ng process is put forwa rd. And then, t wo o pti miza tion problems wit h uni-modal and mul timo dal o bjective functions are solved respectivel y. The simula tion results show t hat the p ropo sed method is bett er than the ordina ry metho d, which has t he a dvantages of fast co nvergence sp eed, less calculating amounts, and wid e app lication scop e, etc. Ta king the method a s innovat ive k ernel, ra ndom research method , fea sible directio n method and other co mplex metho ds are improved. Its characteristics are suitabl e fo r vivid teachi ng li ke interp reting. The linear subspace-ba sed blind and gro up -bli nd m ultiuser detectors recentl y develop ed represent a robust and efficient adap tive mult iuser det ectio n techniq ue for co de -division multiple-access (CDMA) syst ems. In t his p aper, we consider t he EBS has i ncreased 18.1 % o f SINR i n b inary co des, increased 9.7 % o f SINR i n co mplex co des a nd i ncreased 18 % of SINR in fixed channels.
关键词：Ad apti ve mu ltiuser d etect ion; power co ntrol ; spreading sequen ces; utilit y; wi reless co mmu nications
