Performance Analysis of Slotted Random Access DS-CDMA Systems with Multipacket Reception  

作　　者：ZHANGJidong XULi ZHENGBaoyu XIAOHaiyong 

机构地区：[1]DepartmentofElectronicEngineering,ShanghaiJiaotongUniversity,Shanghai200030,China [2]DepartmentofInformationEngineering,NanjingUniversityofPostsandTelecommunications,Nanjing210003,China [3]DepartmentofRadioEngineering,SoutheastUniversity,Nanjing210096,China

出　　处：《Chinese Journal of Electronics》2004年第3期449-452,共4页电子学报（英文版）

摘　　要：Multiple packets reception (MPR) is a new method to improve the network performance. If a node in the network has the capability of MPR, the node can receive multiple packets simultaneously, not to discard all the packets like the traditional method. In this paper, Bit error rate (BER) for direct-sequence spread spectrum multiple access system over Rice fading channel is considered, based on the standard Gaussian approximation, and the explicit close-form expression for BER is provided, which is expressed by a single integral. Moreover, the performance of random multiple access in the Direct-sequence code division multiple access (DS-CDMA) system with the capability of multiple packets reception is analyzed over Gaussian channel Rayleigh fading channel and Rice fad-ing channel, respectively, where the multiple packets reception is obtained by the method of match filter. The simulation results show that the MPR capability improves the throughput of DS-CDMA system greatly, compared with the conventional single packet reception. The system has the maximum throughput when signals are transmitted over the Gaussian channel. Also, the impact of Signal-to-noise ratio (SNR), channel coding and the traffic arrival model on the throughput of DS-CDMA system is given in the simulation and the analysis for the simulation results is provided.

关 键 词：DS-CDMA 多包接收 多路存取 吞吐量 匹配滤波 

分 类 号：TN929.533[电子电信—通信与信息系统]