Performance Analysis of Orthogonal Frequency Division Multiplexing Based Bidirectional Relay Network in the Presence of Phase Noise

Abstract

In this study, the performance of OFDM based bidirectional relay network which employs Physical Layer Network Coding (PLNC) is analyzed in the presence of phase noise. The bidirectional relay network is assumed to consist of two sources and a relay, where each node has a single antenna and operates in half duplex mode. The PLNC based OFDM system transmits high data streams over numerous sub channels in frequency domain. Each sub channel is a narrow band flat fading channel, thereby achieving high spectral efficiency over wide band channels. In practice, phase noise is introduced with the information symbols transmitted on all subcarriers in OFDM transceiver. The influence of phase noise on the received signals are analyzed at both the Multiple Access Channel (MAC) and at the Broadcast Channel (BC) environments

Reducing Transmitted Power of Moving Relay Node in Long-Term Evolution-Advanced Cellular Networks

“…The optimum location of the relay to all cell boundaries with respect to the SNR of two multi-hop links can be obtained by using the mathematics of convex optimization (Kumaran et al, 2013). Thus, taking the first derivative of Equation (30) with respect to relay location (d RN ) and setting it to zero, then Equation (31):…”

“…Long-Term Evolution-Advanced (LTE-A) is the enhancing of the 3rd Generation Partnership Project (3GPP) LTE, which is improves LTE features in terms of coverage and throughput (Jaafar et al, 2013;Kumaran et al, 2013). The relay is one of the major innovations of LTE-A, which extends the coverage and enhances throughput at the users within cell size.…”

Analysis of Reduction in Complexity of Multiple Input- Multiple Output-Orthogonal Frequency Division Multiplexing Systems With Carrier Frequency Offset Estimation and Correction

“…Ahmed et al (2010) presented the maximum likelihood estimation, Bayesian using Jeffrey prior and the extension of Jeffrey prior information for estimating the parameters of Weibull distribution of life time. Kumaran et al (2013) analyzed the performance of OFDM based bidirectional relay network which employs Physical Layer Network Coding (PLNC) in the presence of phase noise. Suresh et al (2012) proposed a novel method to estimate fine symbol timing error for MB-OFDM based UWB system which will be suitable for MB-OFDM receivers for UWB positioning and UWB communication.…”