Autonomous infrastructure based multihop cellular networks

Abstract

However, multihop cellular networks still suffer from large amounts of interference surrounding the base station because all traffic either emanates or is destined to the base station making it the capacity bottleneck. To resolve this problem, we propose a novel architecture called the autonomous infrastructure multihop cellular network where users can connect their mobile terminals to the backbone network giving them the functionality of an access point. Access points receive traffic from other terminals and send it directly onto the backbone, as would a base station. This reduces the traffic handled by the base station and increases network capacity. Our analysis and simulations show that in autonomous infrastructure multihop cellular networks, the SINR at the base station ii is higher, the power consumption is lower and the coverage is better than in normal multihop cellular networks.Access points require parameters like their transmission range to be adjusted autonomously to optimal levels. In this thesis, we propose an autonomous pilot power protocol. Our results show that by adjusting a parameter within the protocol, a required coverage level of terminals can be specified and achieved without knowledge of the location or density of mobile terminals. Furthermore, we show that the protocol determines the transmission range that is optimal in terms of SINR and power consumption that achieves the required coverage while effectively eliminating the bottleneck that existed at the base station.iii

Pilot Power Protocol for Autonomous Infrastructure Based Multihop Cellular Networks

“…For this reason, the MCN architecture lends itself perfectly to having certain mobile terminals act as APs which is not the case in traditional cellular networks because terminals only have the capability to transmit to base stations. Simulation results show that autonomous infrastructure MCNs have a higher SINR, a lower power consumption and better coverage than normal MCNs [3].…”

“…However, the cost of additional base stations is very high. An alternate solution called the autonomous infrastructure multihop cellular network was presented in [3] to help alleviate the amount of traffic that base stations are required to handle. In this architecture we assume that a percentage of mobile terminals are built with an additional interface that the subscriber can use to directly connect the terminal to the backbone network.…”