A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Arunmozhi, S.
- Performance Analysis of Dual-Hop Relaying Networks with Nth Best-Path Selection over Rayleigh Fading Channel
Authors
1 Pondicherry University, Puducherry, IN
2 Pondicherry University, IN
Source
Networking and Communication Engineering, Vol 7, No 4 (2015), Pagination: 163-168Abstract
Cooperative relaying is one of the potential technique which exploits progress in better signalling and spatial diversity. A novel relay approach, the Nth Best-Relay Selection scheme is projected to recover the bandwidth scarcity and to enhance the spatial diversity in cooperative systems. A single branch dual-hop network with Decode-and-forward (DF) and Amplify-and-forward (AF) cooperative diversity systems is considered. The projected Nth Best-Relay selection scheme performance over single branch dual-hop system were analyzed using the closed-form expression of BER (Bit error rate) and Outage probability using binary and quadrature phase shift keying modulation schemes (BPSK & QPSK) with decode-and-forward (DF) and amplify-and-forward (AF) cooperative diversity systems over Rayleigh fading channel . Simulation outputs illustrates the diversity order of the Nth best relay is equal to (M−N +2) where M is the total number of relays.
Keywords
Relay, NthBest-Relay Selection Scheme, Single Branch Dual-Hop Network, AF Scheme, DF Scheme.
- Performance of Half Duplex Cellular Network over a Multiple Access Relaying Channel
Authors
1 SCSVMV University, Kancheepuram, Tamil Nadu, IN
2 Department of Electronics and Communication Engineering, Pondicherry Engineering College, Pondicherry, IN
Source
Networking and Communication Engineering, Vol 9, No 2 (2017), Pagination: 26-30Abstract
In the perspective of improving coverage and spatial diversity the need for cooperative relaying has already proved mandatory. The need for multiple access relaying is also proportionately increasing with an enhanced signal reception and reduced system cost with less number of base stations. The use of Analog Network Coding (ANC) on the Multiple Access Relay Channel (MARC) with multiple relay has been under investigation. Two phases of transmission is performed in the relaying environment to enhance the performance in a co-operative wireless system. The data from the source to relay is communicated on a virtual MIMO scheme and the data from the relay to destination is time shared. An analytical modeling has been derived for both direct and indirect links with MARC two phase transmissions. The performance analysis in terms of Bit Error Rate (BER) for both direct and indirect links is carried out for Rayleigh fading channel. The performance of the proposed model shows an optimal improvement in the error rate analysis.