Network Coded ALOHA for Wireless Multihop Networks

Lee, Hyun-Kwan; Kim, Seong-Lyun

doi:10.1109/wcnc.2009.4917827

Cited by 6 publications

(4 citation statements)

References 14 publications

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“…Once we have an approximate value for p * , we can derive the optimal value for p * c (18) or (20). Our simulations in Section 'Numerical results' verify that the formula matches the numerical results, even in low target SINR cases.…”

Section: Saturated Trafficsupporting

confidence: 59%

“…Consider the star topology wireless network of k +1 nodes in Figure 1 [18]. Nodes are divided into k outer nodes and one relay node in the center.…”

Section: Network Modelmentioning

confidence: 99%

“…The condition is achieved when the queue length of the center node tends to infinity. To proceed further, we borrow results from our previous article [18]. There are three types of flows: an input flow to the center node, an output flow from the center node, with and without network coding, denoted as S …”

Section: Saturated Trafficmentioning

confidence: 99%

“…A similar model was considered in previous studies [18,19]. In [19], routing, MAC, and network coding are jointly optimized, but both [18,19] did not consider the queuing effects for network coding at the intermediate node. Other than this, the most relevant article [20] analyzed the throughput and delay of network coded ALOHA.…”

Section: Introductionmentioning

confidence: 99%

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Throughput and delay analysis of network coded ALOHA in wireless networks

Lee

Hwang

Kim

et al. 2012

J Wireless Com Network

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The purpose of this article is to analyze the impact of network coding in wireless networks. We consider a network coded ALOHA that performs bi-directional network coding over the ALOHA MAC protocol in a star topology network. The transmission probabilities of each outer node and the center node, and the target signal-to-interference-plusnoise ratio (SINR) are jointly optimized to achieve the maximum throughput of coded ALOHA. We analyze and compare the optimal performance of slotted and coded ALOHA. Under the unsaturated traffic condition at the center node, we derive practical throughput and delay, considering the network coding opportunity and the maximum queue length of the center node. Under the saturated traffic condition, we obtain a throughput upper bound of coded ALOHA to judge the ideal gain of network coding. The impact of asymmetric topology is evaluated with simulations.

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Section: Saturated Trafficsupporting

confidence: 59%

“…Consider the star topology wireless network of k +1 nodes in Figure 1 [18]. Nodes are divided into k outer nodes and one relay node in the center.…”

Section: Network Modelmentioning

confidence: 99%

Section: Saturated Trafficmentioning

confidence: 99%