Avoiding Redundant Channel Blocking in Cooperative Multi-Channel MAC Protocols through Virtual Topology Inferencing

Ivanov, Stepan; Botvich, Dmitri; Balasubramaniam, Sasitharan; Popova, Nadezhda A.

doi:10.1109/iccw.2009.5208051

Cited by 6 publications

(12 citation statements)

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“…Through negotiations, the nodes can make parallel transmission, which in turn increases the performance. Further studies presented in [11] show that extending CAM-MAC negotiations to infer locations of nodes within the vicinity can prevent redundant channel blocking, which further increases the overall throughput performance.…”

Section: Introductionmentioning

confidence: 98%

“…cognitive radio [12], cooperative MAC, cross layer design). In particular, special attention has focused on cooperative multichannel MAC protocols [9] [11].…”

Section: Introductionmentioning

confidence: 99%

“…1 presents our proposed solution. The CAM-MAC-ARCB protocol is based on our previous work presented in [11] which extends the CAM-MAC protocol. While the previous solution only focused on single hop transmission, in this paper we extend this solution to support multi-hop transmission by using gradient based routing.…”

Section: Introductionmentioning

confidence: 99%

“…CAM-MAC-ARCB In this section we provide a short description of the CAM-MAC-ARCB solution, while a full description can be found in [11]. As described in the related work section, the advantage of the CAM-MAC protocol is the ability of the neighbours to assist in the negotiation process, and help veto request of invalid channels made by neighboring nodes.…”

Section: Introductionmentioning

confidence: 99%

“…Appearance of this problem prevents nodes from transmitting at higher throughput, if the knowledge of used channels in the neighbourhood is not clearly propagated. In order to counter this problem, we incorporated topology inferencing, where each node is able to sense used channels and their respective range based on a virtual topology [11]. Fig.…”

Section: Introductionmentioning

confidence: 99%

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Gradient Based Routing Support for Cooperative Multi-channel MAC in Ad Hoc Wireless Networks

Ivanov

Botvich

Balasubramaniam

2010

2010 24th IEEE International Conference on Advanced Information Networking and Applications

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Abstract-Growing popularity of wireless ad hoc networks leads to higher demands on performance of all TCP/IP stack layers. Usually ad hoc networks operate according to IEEE 802.11 standard which provides a MAC layer protocol that uses a single channel for data transmissions. However, increasing the number of data channels on MAC layer improves performance of ad hoc wireless networks by letting nodes simultaneously transmit data through different channels. Nevertheless network performance improvement will be diminished if routing mechanisms are not efficient and reactive to load changes within the network. In this paper we introduce a multi-channel MAC layer cooperative technique that integrates gradient based routing to support multi-hop wireless transmission. We show that using the gradient based routing to support multi-channel MAC protocols can enhance overall throughput of the network, and improve network load balancing. Simulations have also been conducted to validate the proposed solution.

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Section: Introductionmentioning

confidence: 98%

“…cognitive radio [12], cooperative MAC, cross layer design). In particular, special attention has focused on cooperative multichannel MAC protocols [9] [11].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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