Ad hoc wireless distribution service

About: Ad hoc wireless distribution service is a research topic. Over the lifetime, 17734 publications have been published within this topic receiving 488205 citations.

Statistical QoS routing for IEEE 802.11 multihop ad hoc networks

Abstract: In this paper, we propose a model-based quality-of-service (QoS) routing scheme for IEEE 802.11 ad hoc networks. Unlike most of QoS routing schemes in the literature, the proposed scheme provides stochastic end-to-end delay guarantees, instead of average delay guarantees, to delay-sensitive bursty traffic sources. Via a cross-layer design approach, the scheme selects the routes based on a geographical on-demand ad hoc routing protocol and checks the availability of network resources by using traffic source and link-layer channel modeling, taking into consideration the IEEE 802.11 characteristics and node interactions. Our scheme extends the well developed effective bandwidth theory and its dual effective capacity concept to multihop IEEE 802.11 ad hoc networks. Extensive computer simulations demonstrate that the proposed scheme is effective in satisfying the end-to-end delay bound to a probabilistic limit.

Performance Analysis of Proactive and Reactive Routing Protocols for Ad hoc Networks

Abstract: Mobile Ad hoc networks are the collection of wireless nodes that can exchange information dynamically among them without pre existing fixed infrastructure. Because of highly dynamic in nature, performance of routing protocols is an important issue. In addition to this routing protocols face many challenges like limited battery backup, limited processing capability and limited memory resources. Other than efficient routing, efficient utilization of battery capacity and Security are also the major concern for routing protocols. This paper presents simulation based comparison and performance analysis on different parameters like PDF, Average e-e delay, Routing Overheads and Packet Loss. The study is about three main protocols DSR, AODV (Reactive) and DSDV (Proactive).

Secure On-demand Routing Protocol for Ad Hoc Network

Abstract: The security issue of the ad hoc network has attracted the attention of people.Therefore,the security of the routing protocol for the ad hoc network is the key problem.A secure ad hoc on-demand routing(SAOR)protocol suitable for ad hoc network is proposed,which uses the session key between pairs of mobile nodes and message anthentication code based on hash function to verify the validity of the route discovery and route replies.By binding the MAC address with ID of every node,the various complex attacks such as wormhole attacks are defended by the proposed neighbor-node maintenance mechanism.NS-2 simulation results show that SAOR can effectively detect and thwart most of attacks upon MANETs(mobile ad hoc network).

Reliable and Energy-Efficient Routing for Static Wireless Ad Hoc Networks with Unreliable Links

Abstract: Energy efficient routing and power control techniques in wireless ad hoc networks have drawn considerable research interests recently. In this paper, we address the problem of energy efficient reliable routing for wireless ad hoc networks in the presence of unreliable communication links or devices or lossy wireless link layers by integrating the power control techniques into the energy efficient routing. We consider both the case when the link layer implements a perfect reliability and the case when the reliability is implemented through the transport layer, e.g., TCP. We study the energy efficient unicast and multicast when the links are unreliable. Subsequently, we study how to perform power control (thus, controlling the reliability of each communication link) such that the unicast routings use the least power when the communication links are unreliable, while the power used by multicast is close to optimum. Extensive simulations have been conducted to study the power consumption, the end-to-end delay, and the network throughput of our proposed protocols compared with existing protocols.