Outage probability of multihop transmission over Nakagami fading channels

Hasna, Mazen O.; Alouini, Mohamed‐Slim

doi:10.1109/lcomm.2003.812178

Cited by 530 publications

(313 citation statements)

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“…It is recalled here that CC systems are among the major emerging wireless technologies capable of providing significant advances in terms of efficiency, connectivity and quality of service. Furthermore, they have been shown to constitute a key contributor towards minimizing traditional requirements for fixed telecommunications infrastructure [21][22][23][24].…”

Section: System and Channel Models 21 Pdn With Res Penetrationmentioning

confidence: 99%

“…Notably, fading is the varying distortion of wireless propagated signals which are subject to reflection, diffraction, refraction and scattering phenomena and have been shown to affect the performance and stability of wireless communication systems. Therefore, it is evident that analyzing the performance of multi-hop wireless communication networks over fading channels has been an important field of research [22][23][24][25][26][27].…”

Section: System and Channel Models 21 Pdn With Res Penetrationmentioning

confidence: 99%

See 1 more Smart Citation

Deployment of wireless sensor network in dispersed renewable energy sources for increasing efficiency of power distribution networks

Tsiftsis

Sofotasios

Papanikolaou

et al. 2015

J. Mod. Power Syst. Clean Energy

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In this work, a novel performance analysis method for evaluating the robustness of emerging power distribution networks (PDNs), which involve deployable renewable energy sources, is proposed. This is realized with the aid of the outage probability (OP) criterion in the context of cooperative communications, which is widely considered in modern wireless communication systems. The main usefulness of this method is that it allows the involved components to communicate to each-other by means of a robust and flexible wireless sensor network architecture. In this context, any conventional medium voltage (MV) bus of the PDN is represented as a wireless relay node where data signals gathered from each MV bus can be forwarded reliably to a control station for the subsequent processing. The received signals at wireless nodes are decoded and then forwarded to ensure minimal errors and maximal robustness at the receiving site. The considered OP analysis denotes the probability that the power of a received information signal drops below a pre-defined threshold which satisfies the acceptable Quality of Service requirements of a reliable signal reception. To this end, simple closed-form expressions are proposed for the OP of a regenerative cooperative-based PDN in the presence of various multipath fading effects, which degrade information signals during wireless transmission. The offered results are rather simple and provide meaningful insights for the design and deployment of smart grid systems.

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Section: System and Channel Models 21 Pdn With Res Penetrationmentioning

confidence: 99%

Section: System and Channel Models 21 Pdn With Res Penetrationmentioning

confidence: 99%

Deployment of wireless sensor network in dispersed renewable energy sources for increasing efficiency of power distribution networks

Tsiftsis

Sofotasios

Papanikolaou

et al. 2015

J. Mod. Power Syst. Clean Energy

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“…The source-destination equivalent SNR of path P i is denoted by γ SD (P i , P i ). For AF relaying, it is given by [21],…”

Section: Power Allocationmentioning

confidence: 99%

Optimal Channel Pairing and Power Allocation for Multi-channel Multi-hop Relay Networks

Hajiaghayi

Dong

Liang

2012

Lecture Notes of the Institute for Computer Sciences, Social Informatics and Telecommunications Engineering

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We study the problem of channel pairing and power allocation in a multi-channel multi-hop relay network to enhance the end-to-end data rate. Both amplify-and-forward (AF) and decode-and-forward (DF) relaying strategies are considered. Given fixed power allocation to the channels, we show that channel pairing over multiple hops can be decomposed into independent pairing problems at each relay, and a sorted-SNR channel pairing strategy is sum-rate optimal, where each relay pairs its incoming and outgoing channels by their SNR order. For the joint optimization of channel pairing and power allocation under both total and individual power constraints, we show that the problem can be decoupled into two subproblems solved separately. This separation principle is established by observing the equivalence between sorting SNRs and sorting channel gains in the jointly optimal solution. It significantly reduces the computational complexity in finding the jointly optimal solution. It follows that the channel pairing problem in joint optimization can be again decomposed into independent pairing problems at each relay based on sorted channel gains. The solution for optimizing power allocation for DF relaying is also provided, as well as an asymptotically optimal solution for AF relaying. Numerical results are provided to demonstrate substantial performance gain of the jointly optimal solution over some suboptimal alternatives. It is also observed that more gain is obtained from optimal channel pairing than optimal power allocation through judiciously exploiting the variation among multiple channels.Impact of the variation of channel gain, the number of channels, and the number of hops on the performance gain is also studied through numerical examples.

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“…Therefore, the relaying technique is widely applied, such as in the next generation cellular networks, wireless local area networks, and hybrid networks. Furthermore, the researches on multihop relays attract interest in cooperative communication, where the mobile users cooperate/collaborate with each other in order to exploit the benefits of spatial diversity without the need for using physical antenna arrays [1], [2], [3], [4], [5].…”

Section: Introductionmentioning

confidence: 99%

Dynamic power allocation for multi-hop linear non-regenerative relay networks

Huang

Chen

2009

2009 Fourth International Conference on Communications and Networking in China

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Abstract-In this paper, we analyze the optimal power allocation for the multihop linear nonregenerative relay cooperative system. The expression for the end-to-end SNR is deprived in terms of power allocation factors to each node and the channel state information, based on which, we obtain the optimal power allocation factors for each nodes by maximizing the end-to-end SNR subject to the total power constraint. Numerical simulations show that the theoretical prediction matches the simulation, and dynamic power allocation outperforms the fixed power allocation scheme.Index Terms-multihop linear relay networks, amplify-andforward, end-to-end SNR, power allocation.

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Outage probability of multihop transmission over Nakagami fading channels

Cited by 530 publications

References 1 publication

Deployment of wireless sensor network in dispersed renewable energy sources for increasing efficiency of power distribution networks

Deployment of wireless sensor network in dispersed renewable energy sources for increasing efficiency of power distribution networks

Optimal Channel Pairing and Power Allocation for Multi-channel Multi-hop Relay Networks

Dynamic power allocation for multi-hop linear non-regenerative relay networks

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