Practical Coding-Aware Mechanism for Opportunistic Routing in Wireless Mesh Networks

Yan, Yan; Zhang, Baoxian; Mouftah, Hussein T.; Ma, Jian

doi:10.1109/icc.2008.541

Cited by 78 publications

(93 citation statements)

References 15 publications

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“…For instance, Yunfeng et al [12] use a proprietary simulator to study the behavior of an enhanced MORE scheme. Furthermore, some other works [13] use ns-2 to assess the performance of COPE [6]. To our best knowledge, there is not any study using the ns-3 simulator.…”

Section: Related Workmentioning

confidence: 99%

Combination of Intra-Flow Network Coding and Opportunistic Routing: Reliable Communications over Wireless Mesh Networks

Garrido¹,

Gómez²,

Agüero³

et al. 2015

Proceedings of the Eighth EAI International Conference on Simulation Tools and Techniques

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Opportunistic routing has recently appeared as a technique aimed to increase the performance of wireless mesh networks, by taking advantage of the broadcast nature of the wireless medium. Despite the remarkable attention the research community has paid to it, there are still some issues that need to be addressed; one of the most relevant ones is the unnecessary forwarding of the same packet by a number of nodes. Since Random Linear Coding (RLC) mechanisms randomly mix packets before forwarding them, they can be exploited to avoid (or at least to minimize) the aforementioned problem. In a previous work we introduced a flexible Network Coding (NC) entity that we integrated within the ns-3 framework. We extend herewith its functionalities, by integrating an opportunistic routing module that enables it to be used over random topologies. In addition, we assess the performance of using different external algebraical libraries to carry out the coding/recoding/decoding operations (i.e. matrix inverse and rank calculation).

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Section: Related Workmentioning

confidence: 99%

Combination of Intra-Flow Network Coding and Opportunistic Routing: Reliable Communications over Wireless Mesh Networks

Garrido¹,

Gómez²,

Agüero³

et al. 2015

Proceedings of the Eighth EAI International Conference on Simulation Tools and Techniques

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“…CAOR (Coding Aware Opportunistic Routing) proposes a localized coding-aware opportunistic routing mechanism to increase the throughput of wireless mesh networks. In this protocol, the packet carries out with the awareness of coding opportunities and no synchronization is required among nodes (Yan et al, 2008). NC-MAC improves the efficiency of coding decisions by verifying the decodability of packets before they are transmitted (Argyriou, 2009).…”

Section: Opportunistic Data Forwarding With Network Codingmentioning

confidence: 99%

TCP adaptation with network coding and opportunistic data forwarding in multi-hop wireless networks

Zhang

Chen

2016

PeerJ Computer Science

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Opportunistic data forwarding significantly increases the throughput in multi-hop wireless mesh networks by utilizing the broadcast nature of wireless transmissions and the fluctuation of link qualities. Network coding strengthens the robustness of data transmissions over unreliable wireless links. However, opportunistic data forwarding and network coding are rarely incorporated with TCP because the frequent occurrences of out-of-order packets in opportunistic data forwarding and long decoding delay in network coding overthrow TCP's congestion control. In this paper, we propose a solution dubbed TCPFender, which supports opportunistic data forwarding and network coding in TCP. Our solution adds an adaptation layer to mask the packet loss caused by wireless link errors and provides early positive feedbacks to trigger a larger congestion window for TCP. This adaptation layer functions over the network layer and reduces the delay of ACKs for each coded packet. The simulation results show that TCPFender significantly outperforms TCP/IP in terms of the network throughput in different topologies of wireless networks.

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“…This protocol uses the Markovian [14] metric for channel resource consumption optimization because of local coding. COAR which was introduced by Yan et al [15] combines NC and opportunistic routing approaches. It gathers local information of nodes in order to make decisions regarding packet forwarding.…”

Section: B Distributed Network Coding-aware Mechanismsmentioning

confidence: 99%

Opportunistic XOR-Coding Content Propagation in VANET

Malakooti¹,

Jalooli²,

Jabbarpour³

et al. 2014

IJCEE

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Abstract-The main difference between typical wireless networks and Vehicular Ad-hoc Networks is mostly about the way traffic is propagated in these types of networks. Unlike conventional wireless networks in VANET connections are established quick and short. Because of these two factors connections in VANET are not as reliable and robust as typical wireless networks. Hence Due to these limitations in VANET and also in order to achieve higher throughput, we are aimed at investigating the adoption of network coding with the existing data propagation and routing methods in Vehicular networks. In order to address the disadvantages, we present an approach called Opportunistic Network Coding-aware Data Dissemination in Wireless Networks (NCODWN). This approach is an enhanced version of COAR. We have managed to improve network throughput and decrease end-to-end delay of the network by implementing a more efficient and reliable mechanism. The simulation results indicate that our approach outperforms COAR in terms of end-to-end delay, percentage of encoded packets, packet delivery and network throughput.Index Terms-Data propagation, network coding, vehicular ad hoc network, wireless. I. INTRODUCTIONThe emergence of wireless networks has made a crucial impact on network communications. Over the last four decades of research were conducted on the different aspects of communication between mobile networks and especially vehicular networks. One of the most important challenges in VANET is considerable rates of packet loss and insufficient throughput. Network coding (NC) [1] was introduced with the main aim of increasing the network throughput. Fig. 1 represents basic concepts of NC. In a wider overview due to nature of wireless networks, they suffer from low throughput and do not scale well in heavy implementations [2] which this problem is inherited by VANET. A. Network Coding and Routing ProtocolsIn order to utilize NC in wireless network in a practical way, one of the most well-known applications is in routing protocols. In other words, NC is applied in routing In order to create a coding-aware routing scheme. Existing NC-aware routing mechanisms in VANET evaluate links only based on possibility and impossibility of coding in nodes.Being aware of Applicable NC scenarios and opportunistic coding among different flows at certain amount of time provides the opportunity to improve the throughput of networks. Thus in order to Improve performance of existing Manuscript received January 9, 2013; revised March 27, 2014 network coding is applied. B. Opportunistic RoutingIn fact opportunistic routing is considerably different from normal routing mechanisms. In conventional routing approaches, the next hop is fixed and is responsible for sending data flows and therefore this kind of routing is not suitable for networks like VANET that their topology is dynamically changing and consequently packet drop probability is high. In contrast in opportunistic routing instead of selection of a fixed next hop, under certain circumstances a se...

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Practical Coding-Aware Mechanism for Opportunistic Routing in Wireless Mesh Networks

Cited by 78 publications

References 15 publications

Combination of Intra-Flow Network Coding and Opportunistic Routing: Reliable Communications over Wireless Mesh Networks

Combination of Intra-Flow Network Coding and Opportunistic Routing: Reliable Communications over Wireless Mesh Networks

TCP adaptation with network coding and opportunistic data forwarding in multi-hop wireless networks

Opportunistic XOR-Coding Content Propagation in VANET

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