Unified Performance Analysis of Two Hop Amplify and Forward Relaying
نویسندگان
چکیده
Wireless relay networks have been studied extensively in the recent literature. Amplify and forward (AF) is one of the most widely used type of relaying. Even though special cases such as channel-noise-assisted, channel-assisted and blind relay modes have been analyzed, a unified performance analysis seems to be not available. In this paper, we present unified performance analysis results for two-hop AF relaying over Nakagami-m fading nonidentical source-to-relay (S→R) and relay-to-destination (R→D) links. A general model for the received signal-to-noise ratio, which covers channel-noise-assisted, channel-assisted and blind relay configurations as special cases, is developed. Closed-form expressions are then derived for the cumulative distribution function (cdf), probability density function (pdf), and moment generating function (mgf). Exact results are derived for symbol error rate of special cases. All results are verified through Monte Carlo simulation.
منابع مشابه
Performance Analysis of cooperative SWIPT System: Intelligent Reflecting Surface versus Decode-and-Forward
In this paper, we explore the impacts of utilizing intelligent reflecting surfaces (IRS) in a power-splitting based simultaneous wireless information and power transfer (PS-SWIPT) system and compare its performance with the traditional decode and forward relaying system. To analyze a more practical system, it is also assumed that the receiving nodes are subject to decoding cost, and they are on...
متن کاملPower allocation in multi-hop OFDM transmission systems with amplify-and-forward relaying: A unified approach
In this paper a unified approach for power allocation (PA) problem in multi-hop orthogonal frequency division multiplexing (OFDM) amplify-and-forward (AF) relaying systems has been developed. In the proposed approach, we consider short and long-term individual and total power constraints at the source and relays, and devise decentralized low complexity PA algorithms when wireless links are subj...
متن کاملDiversity Order Analysis of Dual-Hop Relaying with Partial Relay Selection
In this paper, we study the performance of dual hop relaying in which the best relay selected by partial relay selection will help the source-destination link to overcome the channel impairment. Specifically, closed-form expressions for outage probability, symbol error probability and achievable diversity gain are derived using the statistical characteristic of the signal-to-noise ratio. Numeri...
متن کاملA Simple Amplify-and-Forward Relaying Scheme Based on Clipping and Forwarding for Dual-Hop Transmissions
In this paper, we propose a simple relaying protocol, namely clip-amplify-forward (CAF), for dual-hop transmissions. In the CAF relaying protocol, the received signal at the relay node is clipped firstly and then amplified with a fixed amplification gain before retransmission. Only a hard clipper and a linear amplifier are needed at the relay node, where no channel estimation is needed. Simulat...
متن کاملDual-hop MIMO relaying with OSTBC over doubly-correlated Nakagami-m fading channels
In this article, we investigate the performance of dual-hop amplify-and-forward multiple-input multiple-output relaying system with orthogonal space-time block code transmissions over doubly-correlated Nakagami-m fading channel, where the source, relay, and destination terminals are all equipped with multiple antennas. For two different CSI-assisted relaying schemes, which could be encompassed ...
متن کامل