IEEE 802.11 FHSS receiver design for cluster‐based multihop video communications

Ban, Kanako; Gharavi, Hamid

doi:10.1002/wcm.85

Cited by 5 publications

(4 citation statements)

References 8 publications

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“…Although there has been considerable effort in recent years to improve the routing performance and reduce the overhead, in this paper we present a simple yet easily implementable cluster-based networking scheme. The network architecture utilizes existing WLAN technologies and, thus, can provide wide-band access for multimedia communications [20], [21]. The proposed network implementation is based on a master/slave network architecture where the ad hoc routing would involve only the master nodes.…”

Section: Proposed Cluster-based Networkmentioning

confidence: 99%

“…These forwarding procedures, however, can cause handoff latency, whose severity also depends on the MAC layer. Consequently, for real-time applications such video, the handoff latency could cause the loss of a large number of packets, thus affecting the resynchronization of the received video information [20], [21].…”

Section: Mobility and Handoffmentioning

confidence: 99%

“…Both DSSS and FHSS physical layers can be used to implement this network. The main advantage of using DSSS is to do with its higher throughput rate (up to 11 Mb/s) as compared to 1 or 2 Mb/s FHSS (e.g., using two-level or four-level GFSK modulation) [20]. However, when there is a relatively large number of clusters, the cochannel interference may become a major concern if the DSSS system is deployed.…”

Section: Ieee 80211mentioning

confidence: 99%

“…In addition, as shown in our experiments, packet retransmission, although effective, cannot contribute significantly to recovering the lost packets. For instance, for real-time applications it may become necessary to deploy forward error correction codes at the application layer as well as develop robust error resilient coding for video streaming [20]. Although such an investigation had been carried out during the course of this project, its detailed description is beyond the scope of this paper.…”

Section: B Handoffs Effectmentioning

confidence: 99%

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Multihop sensor network design for wide-band communications

Gharavi

Ban

2003

Proc. IEEE

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This paper presents a master/slave cellular-based mobile ad hoc network architecture for multihop multimedia communications. The proposed network is based on a new paradigm for solving the problem of cluster-based ad hoc routing when utilizing existing wireless local area network (WLAN) technologies. The network architecture is a mixture of two different types of networks: infrastructure (master-and-slave) and ad hoc. In this architecture, the participating slave nodes (SNs) in each cluster communicate with each other via their respective master nodes (MNs) in an infrastructure network. In contrast to traditional cellular networks where the base stations are fixed (e.g., interconnected via a wired backbone), in this network the MNs (e.g., base stations) are mobile; thus, interconnection is accomplished dynamically and in an ad hoc manner. For network implementation, the IEEE 802.11 WLAN has been deployed. Since there is no stationary node in this network, all the nodes in a cluster may have to move together as a group. However, in order to allow a mobile node to move to another cluster, which requires changing its point of attachment, a handoff process utilizing Mobile IP version 6 (IPv6) has been considered. For ad hoc routing between the master nodes (i.e., MNs), the Ad hoc On-demand Distance Vector (AODV) Routing protocol has been deployed. In assessing the network performance, field test trials have been carried out to measure the proposed network performance. These measurements include packet loss, delays under various test conditions such as a change of ad hoc route, handoffs, etc.

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Section: Proposed Cluster-based Networkmentioning

confidence: 99%

Section: Mobility and Handoffmentioning

confidence: 99%

Section: Ieee 80211mentioning

confidence: 99%

Section: B Handoffs Effectmentioning

confidence: 99%

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Multihop sensor network design for wide-band communications

Gharavi

Ban

2003

Proc. IEEE

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Stable Clustering with Efficient Routing in Wireless Ad Hoc Networks

Dhurandher

Singh

2007

2007 2nd International Conference on Communication Systems Software and Middleware

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In ad hoc networks the association and organisation is required in large MANETs. This is possible by disassociation of mobile nodes to and from the clusters grouping a number of nodes into an easily manageable set perturb the stability of the network and thus reconfiguration known as cluster [6,7,15,17,20,21]. Certain nodes, known as of clusterheads is unavoidable. This is an important issue clusterheads, would be responsible for the formation of clusters since the frequent clusterhead changes adversely affect the (each consisting of a number of nodes) and maintenance of the performance of other protocols. This paper proposes a topology of the network. Weight Based Adaptive Clustering Algorithm (WBACA) that leads to a high degree of stability in the network. TheClustering provides a convenient framework for the proposed WBACA takes into account the transmission development of important features such as channel efficiency power, transmission rate, mobility, battery power and the [5], routing performance [13], power control [22], virtual circuit degree of a node for forming clusters. Through simulations support and bandwidth utilization. The whole idea of clustering we have compared the performance of WBACA with that of in MANETs has proved to be very effective in managing the the Lowest-ID algorithm and the Weighted Clustering resources at the MAC level. Algorithm (WCA) in terms of the number of clusters formed, number of clusterhead changes, and the number of The rest of this paper is organized as follows. Previous work reaffiliations. We also study the operation and performance done in the area of clustering is reviewed in Section II, where an of the proposed scheme through detailed simulations, overview of different clustering algorithms is given. Section III evaluating the control overheads, throughput, and average presents the proposed WBACA in detail. In Section IV, the packet transfer delay in the network.simulation results that demonstrate the efficiency and stability of WBACA are presented. Finally, Section V concludes this paper.

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Weight based adaptive clustering in wireless ad hoc networks

Dhurandher

Singh

2005 IEEE International Conference on Personal Wireless Communications, 2005. ICPWC 2005.

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IEEE 802.11 FHSS receiver design for cluster‐based multihop video communications

Cited by 5 publications

References 8 publications

Multihop sensor network design for wide-band communications

Multihop sensor network design for wide-band communications

Stable Clustering with Efficient Routing in Wireless Ad Hoc Networks

Weight based adaptive clustering in wireless ad hoc networks

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