Scalable proxy routing in multi-hop cellular networks

Ad-hoc and cellular networks have received great attention in recent years. To accommodate the large number of users and traffic over a large geographic area, cellular networks could take advantage of the infrastructureless ad-hoc networks to provide extended service. One of the key issues in the integration of cellular and ad-hoc networks is to find some mobile nodes as proxies to relay the messages from base stations to destination nodes. In this paper, a scalable proxy relay routing protocol (SRP) is proposed to increase the total throughput of the system. In the strategy, the base station always sends data to the destination node through the selected proxy nodes which has minimum transmission delay. We demonstrate the advantage of our scheme over other current schemes such as UCAN and DST through simulation. The results have shown that the scheme outperforms other related schemes in terms of throughput and end-to-end delay.