Cyclicity Restoration Using Tentative Signals for OFDM-Based WLAN Systems

摘要：

In this paper, we present two efficient cyclicity restoration (CR) schemes for orthogonal frequency-division multiplexing (OFDM) systems to combat intersymbol interference (ISI) and intercarrier interference (ICI) when the channel impulse response is longer than cyclic prefix (CP). First, we introduce a parallel scheme using the tentative signals generated in time domain, which provides low computational complexity for wireless local area network (WLAN) applications. Additionally, a successive scheme is investigated to improve the performance of the proposed parallel scheme without increasing the computational cost. Simulations show that the proposed schemes offer approximately the same bit error rate (BER) performance as conventional CR method.

作者: Wei Zhong Zhigang Mao

作者单位: Microelectronics Center Harbin Institute of Technology (HIT) Harbin, Heilongjiang, China

会议类型: 国际会议

会议名称: 2006 International Conference on Communications,Circuits and Systems(第四届国际通信、电路与系统学术会议)

会议地点: 广西桂林

会议语种:英文

页码: 1073-1076

在线出版日期: 2006-06-25（万方平台首次上网日期，不代表论文的发表时间）