First and Second Order Characteristics of a Wireless Three-hop Relay Channel with the Presence of Rayleigh Fading

Krstić, Dragana; Nikolic, Petar; Popović, Zoran; Stefanović, Mihajlo

doi:10.26636/jtit.2020.144020

Cited by 3 publications

(1 citation statement)

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“…Our group of authors considered first and second order performance of wireless three-hop relay channel under the influence of Rayleigh fading in [8]. The performance investigation of the output signal from a three-hop wireless relay system in the presence of Nakagami-m fading, presented as a product of three Nakagami-m RVs, is given in [9].…”

Section: Related Papers and System Modelmentioning

confidence: 99%

Wireless Three-hop Relay Environment with Line-of-Sight: Investigation and Performance Analysis

Krstić

Nikolic²,

Popović³

et al. 2021

JCOMSS

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Lately, the investigation of multi-hop relays is increased in both, academia and engineering practice. Multi-hop relay is introduced to enable data transmission between base station and mobile user dividing great distance into two or more segments to improve link quality. This improvement is specially expressed in environments under deep fading and shadow, where coverage is significantly increased using multi-hop relays. Here, wireless three-hop relay environment with line-of-sight was observed. Output signal from such system is defined as a product of three arbitrary, independent, but not necessarily identically distributed Rician random variables (RVs). For such system, some important performance of the first and second order were analyzed and graphically presented. The impact of Rician factor and signal powers on performance quantities was shown. Derived and displayed first order performance are: probability density function (PDF), cumulative distribution function (CDF), outage probability (Pout), moments, amount of fading (AoF) and channel capacity. Then, the following second order characteristics of wireless three-hop relay communication system working in Rician multipath fading environment were covered: level crossing rate (LCR) and average fade duration (AFD). These results have big application in wireless relay communications with a pronounced line-of-sight, where Rician model is used to describe fading.

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Section: Related Papers and System Modelmentioning

confidence: 99%