Mobile Intelligence

7.1 INTRODUCTION

The integration and interoperability of mobile communication technologies, along with new broadband wireless innovations and intelligent user-oriented services will lead toward the next-generation mobile systems. The communication infrastructure of the future will be heterogeneous and multihop wireless networks. The examples of such platforms are ad hoc networks and wireless sensor networks. However, many technical issues such as the design of distributed routing protocols, which are capable of handling the dynamic network environment through multihop mobile communications, are still open for research.

The location information of mobile nodes has recently been applied to improve the performance of routing protocols [1, 2, 7, 8, 12] in multihop wireless networks, in which mobile nodes obtain their own location information either by using the low-power low-cost global positing system (GPS) receivers or by measuring signal strengths and calculating relative coordinates [21]. A location service system may be able to locate objects worldwide, within a metropolitan area, throughout a campus, in a particular building, or within a single room. The main goal of location service in multihop wireless networks is to search the location information for the source node, destination node, and all the possible intermediate nodes. Accordingly, the location service protocol is required for providing the physical location or the logical affiliation of individual nodes.

The efficiency ...