Abstract
A mobile ad hoc network is formed by a cluster of mobile stations randomly located within a certain area without the infrastructure of base stations. There have been many researches proposing different models of routing protocols and numerous simulations to enhance their performances under varying conditions and constraints. However, most of them only focus on network layer without considering the influence of media access control (MAC) layer. In this paper, a new strategy of cross layer algorithm is proposed based on the characteristics of reactive routing and multi-hop jumping. In addition, artificial bee colony algorithm is performed to calculate the contention window of the nodes along the routing path over MAC layer. This framework could avoid data collision in MAC layer, and results in getting better performances of data transmission in network layer. Extensive simulations show that the proposed AODV with intelligent priority flow scheme is able to earn a significant improvement over the conventional routing algorithm.
Highlights
With the advancement of wireless technology, people have witnessed an ever-increasing popularity of wireless networks in recent years
Wireless local area network is limited to one-hop communication between clients and access points
hotspot mitigation protocol (HMP) balances resource consumption among neighboring nodes by suppressing new route requests and controlling TCP flows rate. These solutions focus only on routing algorithms and do not fully consider the media access control (MAC) layer contentions which result in different problems of channel access at the neighboring nodes
Summary
With the advancement of wireless technology, people have witnessed an ever-increasing popularity of wireless networks in recent years. If communication devices are allowed to forward packets for others, a multi-hop ad hoc network can be formed, and the range of wireless access to Wi-Fi hotspots can be significantly extended. The transmission at each hop has to contend the channel with upstream and downstream nodes This effect results in congestion at some nodes along the routing path and seriously limits the performances of multi-hop ad hoc networks. HMP balances resource consumption among neighboring nodes by suppressing new route requests and controlling TCP flows rate These solutions focus only on routing algorithms and do not fully consider the MAC layer contentions which result in different problems of channel access at the neighboring nodes. AODV with intelligent priority flow scheme for multi-hop ad hoc networks is proposed.
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