Performance analysis of bi-directional relay selection strategy for wireless cooperative communications

Published on Apr 16, 2019in Eurasip Journal on Wireless Communications and Networking1.408
· DOI :10.1186/S13638-019-1417-1
Samer Alabed3
Estimated H-index: 3
(American University of the Middle East)
Sources
Abstract
This paper proposes a new two-way double-relay selection strategy for wireless cooperative communication systems with its bit error rate (BER) performance analysis. In this work, two relays are first chosen to maximize the overall system performance in terms of BER. Then, either the two-phase or three-phase protocol is performed to achieve two-directional communications between the communicating terminals through the selected relay nodes that apply orthogonal space-time coding (STC) scheme in a distributed fashion to improve the overall system performance with linear decoding complexity. In other words, the proposed strategy offers an improvement in the reliability of the system and enjoys very low decoding complexity by enabling a symbol-wise decoder. On the other hand, another improvement in the performance at the communication terminals is achieved by performing a network coding method at the selected relay nodes. Furthermore, we offer also analytical approximation of the BER performance for the proposed strategy where the simulation results match perfectly the analytical ones. From the simulation results section, the proposed strategy shows a substantially improved BER performance as compared to the current ones.
📖 Papers frequently viewed together
1 Citations
References22
Newest
#1Tan N. Nguyen (Ton Duc Thang University)H-Index: 9
#2Tran Hoang Quang Minh (Ton Duc Thang University)H-Index: 8
Last. Phu Tran Tin (Technical University of Ostrava)H-Index: 7
view all 7 authors...
Abstract In this paper, we propose two relay selection methods to enhance system outage performance for energy harvesting (EH) based two-way relaying protocols in wireless adhoc networks. In the proposed protocol, two source nodes communicate with each other via the assistance of multiple decode-and-forward (DF) relays using three-phase digital network coding. At the first and second phases, two sources broadcast their data to the relays. Employing a power-splitting model, the relays would harve...
17 CitationsSource
This paper proposes and analyzes a novel differential distributed beamforming strategy for decentralized two-way relay networks. In our strategy, the phases of the received signals at all relays are synchronized without requiring channel feedback or training symbols. Bit error rate (BER) expressions of the proposed strategy are provided for coherent and differential M-PSK modulation. Upper bounds, lower bounds, and simple approximations of the BER are also derived. Based on the theoretical and s...
3 CitationsSource
In this work, we are interested in implementing, developing and evaluating multi-antenna techniques used for multi-user two-way wireless relay networks that provide a good tradeoff between the computational complexity and performance in terms of symbol error rate and achievable data rate. In particular, a variety of newly multi-antenna techniques is proposed and studied. Some techniques based on orthogonal projection enjoy low computational complexity. However, the performance penalty associated...
3 CitationsSource
#1Guofa Cai (GDUT: Guangdong University of Technology)H-Index: 35
#2Yi Fang (GDUT: Guangdong University of Technology)H-Index: 17
Last. Guanrong Chen (CityU: City University of Hong Kong)H-Index: 157
view all 5 authors...
This paper investigates a two-way two-relay network-coded differential-chaos-shift-keying (DCSK) system over multipath Rayleigh fading channels. First, a decode-and-forward protocol is considered, when the two relays first decode the two users' orthogonal transmitted signals and then forward their XORed version back to the users. Based on the equal-gain-combining method at the receiver of each user, the bit-error-rate (BER), achievable diversity order, and throughput are analyzed. It is shown th...
32 CitationsSource
#1Guofa Cai (GDUT: Guangdong University of Technology)H-Index: 35
#2Yi Fang (GDUT: Guangdong University of Technology)H-Index: 17
Last. Guojun Han (GDUT: Guangdong University of Technology)H-Index: 14
view all 3 authors...
Multiresolution M-ary differential chaos shift keying (MR- M-DCSK) system enables unequal-priority transmission via exploiting non-uniformly spaced phase constellations. In this letter, an adaptive MR- M-DCSK system is proposed by using a new constellation parameter design. Aiming at maximizing the spectral efficiency, the constellation parameter is carefully selected based on signal-to-noise ratio, and then is further optimized by a new search algorithm. Both the analytical and simulat...
27 CitationsSource
#1Samer Alabed (American University of the Middle East)H-Index: 3
Abstract This work proposes novel bi-directional dual-relay selection techniques based on Alamouti space-time block coding (STBC) using the decode and forward (DF) protocol and analyzes their performance. In the proposed techniques, two- and the three-phase relaying schemes are used to perform bi-directional communication between the communicating terminals via two selected single-antenna relays that employ the Alamouti STBC in a distributed fashion to achieve diversity and orthogonalization of ...
3 CitationsSource
May 15, 2016 in VTC (Vehicular Technology Conference)
#1Guofa Cai (Ha Tai: Xiamen University)H-Index: 35
#2Lin Wang (Ha Tai: Xiamen University)H-Index: 21
Last. Georges Kaddoum (Université du Québec)H-Index: 33
view all 4 authors...
In this paper, we deal with the problem of maximum likelihood (ML) estimation of the signal-to-noise ratio (SNR) parameter for frequency modulated differential chaos shift key (FM-DCSK) system over multipath Rayleigh fading channels. The ML estimators are derived for various scenarios including data-aided (DA), non-data aided (NDA) and joint DA-NDA estimation by using both the data and pilot symbols. For comparison purposes, the Cramer- Rao lower bounds (CRLBs) for the SNR estimators are derived...
8 CitationsSource
#1Yi Fang (GDUT: Guangdong University of Technology)H-Index: 17
#2Guojun Han (GDUT: Guangdong University of Technology)H-Index: 14
Last. Lin Wang (Ha Tai: Xiamen University)H-Index: 21
view all 6 authors...
In the past two decades, chaotic modulations have drawn a great deal of attention in low-power and low-complexity wireless communication applications due to their excellent anti-fading and anti-intercept capabilities. Of particular interest is the differential chaos shift keying (DCSK), which is considered as a very promising chaotic modulation scheme that achieves not only good error performance, but also low implementation complexity. In this treatise, we provide an insightful survey on the st...
71 CitationsSource
#1Guofa Cai (GDUT: Guangdong University of Technology)H-Index: 35
#2Yi Fang (GDUT: Guangdong University of Technology)H-Index: 17
Last. Lin Wang (Ha Tai: Xiamen University)H-Index: 21
view all 5 authors...
In this paper, a square-constellation-based M-ary differential chaos-shift-keying ( M-DCSK) communication system framework is proposed. The symbol-error-rate expression of the proposed system is derived over additive white Gaussian noise as well as multipath Rayleigh fading channels. Moreover, the peak-to-average-power-ratio (PAPR) performance is carefully analyzed for the newly proposed system. Based on the square-constellation-based M-DCSK framework, a simple least-square estimator is...
18 CitationsSource
Apr 19, 2015 in ICASSP (International Conference on Acoustics, Speech, and Signal Processing)
#1Adrian Schad (Atlas Elektronik)H-Index: 7
#2Samer Alabed (Technische Universität Darmstadt)H-Index: 11
Last. Marius Pesavento (Technische Universität Darmstadt)H-Index: 27
view all 4 authors...
In this work, we propose a differential beamforming (DBF) scheme for bi-directional communication between two single-antenna terminals via a multi-antenna relay station (RS). The proposed scheme utilizes differential phase-shift keying modulation to enable beamforming at the RS without knowledge of the instantaneous channel state information (CSI) at any entity in the network. In our differential scheme, receive and transmit beamforming at the RS is performed based on the implicit CSI contained ...
3 CitationsSource
Cited By2
Newest
In this article, a novel two-way double-relay selection strategy with its bit error rate (BER) performance analysis is proposed. In this novel strategy, as a first step we choose two relays out of a set of relay-nodes in a way to maximize the system performance in terms of BER and complexity. In the second step, the selected relays apply orthogonal space-time coding scheme using the three-phase protocol to establish a two-way communication between the transceivers, which will lead to a significa...
Many noncoherent distributed strategies for cooperative sensor networks that do not require channel knowledge at any antenna to overcome the overhead involved in channel estimation are lately suggested; however, these strategies suffer from low system performance in terms of bit error rate (BER) and a comparably high decoding complexity. Differential beamforming strategies have recently been proposed to overcome these problems; however, they are implemented using the four-phase protocol. Thus, w...
Source