A performance study of dual-hop transmissions with fixed gain relays

Hasna, Mazen O.; Alouini, Mohamed‐Slim

doi:10.1109/icassp.2003.1202587

Cited by 113 publications

(136 citation statements)

References 5 publications

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“…Assuming that the source S transmits a signal with an average power normalized to unity, then the end-to-end SNR is given by [1] …”

Section: System Modelmentioning

confidence: 99%

“…However, AF relays can be further divided into two main subcategories: full channel state information (CSI) relays and semi-blind relays. In this paper, we only focus on the semi-blind AF relays since they are more practical to be deployed [1]. Over the past few years, there has been a tremendous amount of research activities in dual-hop wireless relaying systems.…”

Section: Introductionmentioning

confidence: 99%

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Exact Closed-Form Expression for End-to-End Average SNR of Dual-Hop Amplify-and-Forward in Wireless Relaying Systems

Badarneh

2015

Wireless Pers Commun

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In this paper, we investigate the end-to-end average signal-to-noise ratio (SNR) of dual-hop amplify-and-forward wireless communication systems operating over independent but not necessarily identically distributed (i.n.i.d.) gÀl fading channels. Specifically, we derive a novel exact closed-form expression for the generalized end-to-end average SNR for arbitrary fading parameters g and l. Using the obtained closed-form expression for the generalized end-to-end average SNR, some important performance metrics such as the average end-to-end SNR, the amount of fading and the channel capacity can be easily obtained. The effect of the fading parameters and the power imbalance on the overall system performance is investigated. The analytical results are validated by means of Monte-Carlo simulations.

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“…Assuming that the source S transmits a signal with an average power normalized to unity, then the end-to-end SNR is given by [1] …”

Section: System Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Exact Closed-Form Expression for End-to-End Average SNR of Dual-Hop Amplify-and-Forward in Wireless Relaying Systems

Badarneh

2015

Wireless Pers Commun

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“…However, most of the two-hop performance analysis works are concerned only with the single-input singleoutput (SISO) relay systems over certain fading channels [7][8][9][10]. Moreover, some of the asymptotic or exact performance results on SISO multi-hop or/and multi-branch cooperative networks reported in literatures such as [11][12][13] cannot be easily applied to the two-hop MIMO beamforming relay systems due to the different statistic property of the end-to-end signal-to-noise ratio (SNR).…”

Section: Introductionmentioning

confidence: 99%

Asymptotic SEP of MIMO beamforming in two-hop AF relaying systems

Han

Lv-xi

et al. 2011

Sci. China Inf. Sci.

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This paper derives an asymptotic average symbol error probability (SEP) expression for multipleinput multiple-output (MIMO) two-hop amplify-and-forward (AF) relay systems with optimal beamforming. The analysis at high signal-to-noise ratio (SNR) quantifies the diversity order and array gain, which are valid for any antenna numbers of the terminals and arbitrary channel fading models. It is also proved that the system performance is dominated by the relatively degraded one of the two-hop channels. Our results based on the simple expressions provide valuable insights into the performance and practical design considerations of MIMO AF networks.

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“…Although multihop extension is a general approach, some state-of-the-art work considers dual-hop communications as an implementable solution (see [6] and references therein). Another problem is whether the relay station is fixed [1,6] or mobile [3,5]. In our work, we consider a mobile-relaying multihop network.…”

Section: Introductionmentioning

confidence: 99%

Profit-Based Routing for Multihop Coverage Extension in Wireless Networks

Choi

Jun

Bahk

2006

Wireless Pers Commun

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In future wireless systems, the coverage of a base station will decrease due to the characteristics of the channel at high-frequency bands. To expand the service coverage, a hybrid network that combines an ad hoc network with a cellular (or wireless LAN) network, appears to have great potential. In such systems, some mobile users outside the service area can access the network with the aid of other intermediate mobiles. However, this method incurs energy consumption in routing users, which could be a serious obstacle for wide-spread deployment of multihop wireless networks. Therefore we consider a revenue-cost model and propose a profit-based routing strategy that encourages routing users to actively participate in the relaying service because they are compensated for their energy consumption cost. Our strategy enables each mobile node to find an appropriate multihop path to a base station (or access point) that satisfies the interests of the service provider and the users. Numerical results show that our model successfully expands the network coverage area while ensuring the profit of each system involved.

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A performance study of dual-hop transmissions with fixed gain relays

Cited by 113 publications

References 5 publications

Exact Closed-Form Expression for End-to-End Average SNR of Dual-Hop Amplify-and-Forward in Wireless Relaying Systems

Exact Closed-Form Expression for End-to-End Average SNR of Dual-Hop Amplify-and-Forward in Wireless Relaying Systems

Asymptotic SEP of MIMO beamforming in two-hop AF relaying systems

Profit-Based Routing for Multihop Coverage Extension in Wireless Networks

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