A New Analytic Approach to Evaluation of Packet Error Rate in Wireless Networks

Bit Error Rate (BER) and Packet Error Rate (PER) are important Quality of Service Parameters for Wireless network. Most of researches in QoS have been devoted to the analysis of BER which gives insight to the mean behavior of the wireless network. However the mean behavior is not sufficient for PER evaluation and more precise characterization of the error process is needed. Residual errors at the output of physical layer are not uniformly distributed. This is due to error correcting mechanism used at physical layer as well as the correlation induced by the memory existing in fading channels. Not taking into account the correlation in the error process and assuming for example that errors are uniformly distributed, as done in most of the published paper in wireless networking, lead to gross overestimation of PER. This over-estimation can go to hundredfold factors as will be shown in this paper. In a previous paper we presented a new analytic formula for predicting Packet Error rate in...

• Type: Conference
• Year: 2005
• Where: CNSR
• Authors: Ramin Khalili, Kavé Salamatian
• Keywords: CNSR 2005, Error Process, Error Rate, Packet Error Rate