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The following topics are dealt with: vehicular networking; beaconing and broadcast; data collection and management; simulation and modelling; transport protocols; mobility management in VANETs; telecommunication security; smart antennas and radio; reliability and routing; cellular networks; physical layer; and MAC.
In this paper, we focus on the cross layer design of the situation that AODV (ad hoc on demand distance vector) routing protocol is implemented in spatial-TDMA wireless networks. The routing discovery and routing maintenance strategy of AODV is simplified by utilizing the neighbor information kept by the spatial-TDMA protocol called USAP (unified slot assignment protocol). The new protocols reduce...
We propose a routing mechanism with distributed call admission control (CAC) algorithms for mobile ad hoc networks (MANET) based on IEEE 802.11e EDCA MAC protocol. A new flow can be admitted by the network only if it can find a path to sustain its traffic. Bloom filter is used here to detect the flows via each node, and the CAC routing decisions are made according to the number of flows of each node...
Call Admission Control (CAC) mechanism can protect the existing flows from being disturbed by the newly added flows, which can ensure the quality of service (QoS) of Mobile Ad hoc Networks (MANET). We proposed a routing mechanism with distributed CAC algorithms for MANET based on IEEE802.11e EDCA MAC protocol. A new flow can be admitted by the network only if it can find a path to sustain its traffic...
In this paper, we propose an anycast mechanism which can adaptively choose the best next-hop to forward packets during the announcement traffic indication map (ATIM) window of multi-channel medium access control (MMAC) protocol. In order to improve the performance of networks by reducing transmission retries and packet drop probabilities, we also propose a multipath extension of AODV routing protocol...
In a mobile ad hoc network (MANET), communication connections need to adapt to frequent unpredictable topology changes due to the mobility, energy constraints, and limited computing power of the mobile hosts. Early solutions address this fundamental requirement by employing techniques that can reconnect a broken link quickly with low overhead. This strategy, however, cannot cope with a high frequency...
In a beaconing scheme (BS) each network node periodically broadcasts messages (beacons) to obtain and maintain an image of the network physical topology. Nodepsilas mobility and issues related with the communication process could degrade the BS view accuracy. This work proposes a novel method to improve the BS robustness face to the communication process drawbacks. Assuming a homogeneous traffic load,...
In classical routing strategies for multihop mobile wireless networks packets are routed on a pre-defined route usually obtained by a shortest path routing protocol. In opportunistic routing schemes, for each packet and each hop, the next relay is found by dynamically selecting the node that captures the packet transmission and which is the nearest to the destination. Such a scheme allows each packet...
This paper proposes a fast forward medium access control protocol (FFMAC) for quality-of-service (QoS) guarantee in multihop IEEE 802.11s wireless mesh networks with multiple channels. To the best of our knowledge, the proposed protocol is the first one which considers the multihop and multichannel issues simultaneously. It provides higher priority for real-time applications, while remaining the distributed...
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