Idle Channel Time Estimation in Multi-Hop Wireless Networks

Odou, Simon; Martin, Steven; Agha, Khaldoun Al

doi:10.1109/icc.2009.5199063

Cited by 2 publications

(1 citation statement)

References 11 publications

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“…, where µ i denote channel i average idle time that can be measured empirically [34], [35]), the PoS (i) memless can be derived as:…”

Section: A Pos Formula Under Memory-time Correlated Channel Availabilitymentioning

confidence: 99%

A Formula for Successful Transmission Probability in Opportunistic Networks Under Memory-Time Correlated Channel Availability

Alnabelsi

2023

IEEE Access

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Dynamic Spectrum Access (DSA) technology in wireless Cognitive Radio Networks (CRNs) provides opportunistic access for unlicensed users, also known as Secondary Users (SUs), which can offer huge bandwidth to enable future wireless communication. Mainly, this technology aims to improve the endto-end throughput by allowing SUs to exploit the licensed channels only when their licensed users, also known as Primary Users (PUs), are not using them. Most existing communication protocols designed for CRNs are based on the assumption that the channel availability time is considered based on a memoryless distribution for PUs arrivals. Unfortunately, this assumption is impractical because the PU channels' activity and availability are memory-time correlated. Worse yet, designing communication protocols for CRNs under this assumption can result in overestimating the Probability of Success (PoS) for SU packet transmissions, resulting in severe degradation in network performance in realistic scenarios. This paper derives a closed-form formula under memory-time correlation for channel availability that quantifies the PoS for SUs' packet transmission in CRNs. This will empower the network designers to get practical expectations about network efficiency rather than the overestimated PoS. Therefore, this work is also useful for emerging wireless networks with multi-hop routing, such as 5G, 6G, vehicular networks, etc., which incorporate DSA techniques. Our numerical and simulation results demonstrate that the PoS is overestimated in most of the literature due to adopting memoryless-based distribution in modeling channels' availability; such overestimation can impact communication protocol decisions, resulting in severe network performance degradation.

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“…, where µ i denote channel i average idle time that can be measured empirically [34], [35]), the PoS (i) memless can be derived as:…”

Section: A Pos Formula Under Memory-time Correlated Channel Availabilitymentioning

confidence: 99%

A Formula for Successful Transmission Probability in Opportunistic Networks Under Memory-Time Correlated Channel Availability

Alnabelsi

2023

IEEE Access

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Traffic-based topology control algorithm for energy savings in multi-hop wireless networks

Martin¹,

Agha²,

Pujolle

2012

Ann. Telecommun.

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Idle Channel Time Estimation in Multi-Hop Wireless Networks

Cited by 2 publications

References 11 publications

A Formula for Successful Transmission Probability in Opportunistic Networks Under Memory-Time Correlated Channel Availability

A Formula for Successful Transmission Probability in Opportunistic Networks Under Memory-Time Correlated Channel Availability

Traffic-based topology control algorithm for energy savings in multi-hop wireless networks

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