Journal ArticleDOI
Asymptotic performance analysis of amplify-and-forward cooperative networks in a nakagami-m fading environment
Behrouz Maham,Are Hjorungnes +1 more
TLDR
This letter analyzes the performance of repetition-based cooperative wireless networks using amplify-and forward relaying and derives a close-form average SER when m is an integer, showing that the derived error rates are tight approximations particularly at medium and high SNR.Abstract:
This letter analyzes the performance of repetition-based cooperative wireless networks using amplify-and forward relaying. The network consists of a source, R parallel relays, and a destination, and the channel coefficients are distributed as independent, non-identical, Nakagami-m. The approximated average symbol error rate (SER) is investigated. For sufficiently large SNR, this letter derives a close-form average SER when m is an integer. The simplicity of the asymptotic results provides valuable insights into the performance of cooperative networks and suggests means of optimizing them. We also use simulation to verify the analytical results. Results show that the derived error rates are tight approximations particularly at medium and high SNR.read more
Citations
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Book
Cooperative Communications: Hardware, Channel and PHY
Mischa Dohler,Yonghui Li +1 more
TL;DR: Facilitating Cooperation for Wireless Systems Cooperative Communications: Hardware, Channel & PHY focuses on issues pertaining to the PHY layer of wireless communication networks, offering a rigorous taxonomy of this dispersed field, along with a range of application scenarios for cooperative and distributed schemes, demonstrating how these techniques can be employed.
Journal ArticleDOI
Cognitive Amplify-and-Forward Relay Networks Over Nakagami- $m$ Fading
TL;DR: The outage probability of dual-hop cognitive amplify-and-forward relay networks subject to independent non-identically distributed Nakagami-m fading is examined and it is revealed that the diversity order is strictly defined by the minimum fading severity between the two hops of the secondary network.
Journal ArticleDOI
Capacity analysis of cooperative systems with relay selection in Nakagami-m fading
TL;DR: In this paper, tight closed-form approximations for the ergodic capacity of dual-hop fixed-gain relaying systems are derived for independent Nakagami-m fading channels, with partial relay selection being employed in the first-hop transmission.
Journal ArticleDOI
Secure Green Communication via Untrusted Two-Way Relaying: A Physical Layer Approach
TL;DR: It is demonstrated that the proposed scheme can improve secure EE remarkably yet at the cost of secrecy sum rate loss, which reveals the inherent tradeoff between energy and security.
Journal ArticleDOI
Performance Analysis of Opportunistic Relaying in a Poisson Field of Amplify-and-Forward Relays
TL;DR: The performance of opportunistic relaying in a dual-hop amplify-and-forward relay network where the relaying nodes are distributed according to a homogeneous two-dimensional Poisson point process with fixed density is analyzed.
References
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Book
Table of Integrals, Series, and Products
TL;DR: Combinations involving trigonometric and hyperbolic functions and power 5 Indefinite Integrals of Special Functions 6 Definite Integral Integral Functions 7.Associated Legendre Functions 8 Special Functions 9 Hypergeometric Functions 10 Vector Field Theory 11 Algebraic Inequalities 12 Integral Inequality 13 Matrices and related results 14 Determinants 15 Norms 16 Ordinary differential equations 17 Fourier, Laplace, and Mellin Transforms 18 The z-transform
Journal ArticleDOI
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
TL;DR: Using distributed antennas, this work develops and analyzes low-complexity cooperative diversity protocols that combat fading induced by multipath propagation in wireless networks and develops performance characterizations in terms of outage events and associated outage probabilities, which measure robustness of the transmissions to fading.
Book
Digital Communication over Fading Channels
TL;DR: The book gives many numerical illustrations expressed in large collections of system performance curves, allowing the researchers or system designers to perform trade-off studies of the average bit error rate and symbol error rate.
Journal ArticleDOI
Fading relay channels: performance limits and space-time signal design
TL;DR: This paper examines the basic building block of cooperative diversity systems, a simple fading relay channel where the source, destination, and relay terminals are each equipped with single antenna transceivers and shows that space-time codes designed for the case of colocated multiantenna channels can be used to realize cooperative diversity provided that appropriate power control is employed.
Book
Digital Communication over Fading Channels: A Unified Approach to Performance Analysis
TL;DR: In this paper, a diversity technique for communication over fading channels in the presence of interference is proposed. But the technique is not suitable for all channels and it is not applicable to all channels.