01.06.2015 | Ausgabe 4/2015
BER Analysis of Asynchronised Wireless Network in Presence of Non-Identically Distributed Interferers
- Zeitschrift:
- Wireless Personal Communications > Ausgabe 4/2015
Abstract
In this paper, bit error rate (BER) analysis of an asynchronised wireless network in the presence of non-identically distributed interferers employing the binary phase shift keying (BPSK) scheme is presented. While calculating the BER, the overlap of frames due to frequency reuse in the network is addressed carefully and a method is presented to calculate the index and the extent of overlap for the bit(s) of individual interfering signals. Taking into account the partial overlap of the bits, the probability density function (pdf) of effective signed fractional overlap variable is derived. The pdf of the resultant asynchronised interfering signal is calculated using an amplitude metric based approach. A closed form expression for BER is also derived. The effect of the number of concurrent transmissions (active users), interference range factor and size of deployment area on the network performance is investigated. Analytical results are verified through simulation studies.