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Through extensive simulations, we found that the mobility in mobile ad hoc networks (MANET) can induce persistent packet reordering. In this paper, we present a set of simple modifications to the TCP protocol to improve its performance to mobile-induced packet reordering in MANET. The new protocol based on the simple idea of delaying the triggering of congestion response algorithms for a short time...
Due to their dynamic topologies, providing quality of service (QoS) in wireless ad hoc networks introduces major new challenges to the research community. Now, the commercially available ad-hoc network products are those based on the IEEE802.11 Distributed Coordination Function (DCF). Cooperative communications fully leverages the broadcast nature of the wireless channel and spatial diversity, thereby...
Efficiency is a crucial metric to evaluate the performance of routing protocols in MANETs. A ratio of average number of control and data packets transmitted to data packets delivered, proposed by S. Corson and J. Macker, is utilized to evaluate the efficiency of routing protocols in this paper. The efficiency evaluation and comparison of AODV, DSDV are carried out based on the simulations in different...
There are the selfish and malicious nodes that two types of threats exist in ad hoc network. This paper gives the detailed analysis of the two types of threats, introduces some existing solutions and point out their inadequacy at the same time. On this basis, a solution based on trust evaluation was proposed.
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