Cooperative load-balancing strategy based on N-hops routing algorithm of ad hoc network in heterogeneous overlapping networks

Abstract

A major challenge of the heterogeneous wireless networks is how to jointly utilize the resources of different radio access technologies in an efficient manner. In this paper, system performance, such as the block probability and throughput, was investigated in communication hot spots overlapped by heterogeneous networks: cellular, WLAN, and WiMax networks. Two cooperative loadbalancing strategies based on hops-limited routing algorithm of ad hoc network are proposed in order to raise the resource utilization of the whole overlapping heterogeneous networks. They both firstly make a decision whether to admit a new call or not based on common radio resource management strategies, and in overloaded condition, select certain traffic to transfer into targeted BS/AP according to minimum price strategy or minimum load BS/AP and nearest traffic strategy, which take into account these factors such as load index, number of hops, traffic prediction, cost, etc. An analytical model is used to compute the call block probability and throughput performance for two different traffic models. Simulation results show that the proposed load-balancing strategies can distribute traffics to the whole heterogeneous wireless networks, decrease the call block probability, improve system throughputs efficiently, and obviously outperform HM-MACA and HS-TC load-balancing strategies.

Video streaming over cooperative wireless networks

“…Pei et al [60] develop an analytical model in the cooperative network to evaluate the call block probability and throughput performance. They also propose two cooperative load-balancing strategies in order to improve the resource utilization.…”

Economic model‐based radio resource management with QoS guarantees in the CDMA uplink

“…where ρ c denotes the current load index of the home cell, which has been obtained in our proposal [17], and ρ 0 is the threshold of light load. If ρ c < ρ 0 , it implies that the current load is too low to perform load balancing.…”

“…Using the resources usage constraint given by Equation (12) in Section 2 and network revenue obtained in Equation (17), the optimisation problem of radio resource allocation is converted into maximising the aggregate revenue of all mobile users based on the economic model in the CDMA uplink. It can be formulated as…”

A Reinforcement Routing Algorithm with Access Selection in the Multi–Hop Multi–Interface Networks

“…This improves the received QoS by the users and provides a cost-effective way to overcome the congestion problem by dynamically balancing the traffic between different access networks. Authors in [13] performed resource utilization in overlapping heterogeneous networks by cooperative load balancing by packet routing based on ad hoc networks which are used in the different applications [14]. In [15] Arun used mobile nodes as routers to support seamless mobility for users in the network results in load balancing between APs.…”