期刊名称：International Journal on Computer Science and Engineering
印刷版ISSN：2229-5631
电子版ISSN：0975-3397
出版年度：2012
卷号：4
期号：08
页码：1480-1492
出版社：Engg Journals Publications
摘要：In this paper we have presented the effect of different modulation Techniques (QPSK, 16QAM and 64QAM) and number of antenna elements at the receiver (Smart Antenna) on the performance of beamforming in OFDM based Wireless network. The performance of the proposed technique is tested for adaptive beam forming algorithm, Least Mean Square (LMS), improved LMS and conventional beamforming for different number of antenna elements. Proposed system not only has good ability of suppressing interference, but also significantly improves the bit-error rate (BER) performance of the system. Simulation results show that an adaptive beam forming gives the optimum performance on urban channels. SNR vs. BER, are compared using same set of parameters.
