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Wireless mesh networks based on IEEE 802.11 technology are a scalable and efficient solution for next generation wireless networking to provide wide-area wideband internet access to a significant number of users. The deployment of these wireless mesh networks may be within different authorities and without any planning, they are potentially overlapped partially or completely in the same service area. So in this paper is design a new model to Enhancement Throughput of Unplanned Wireless Mesh Networks Deployment Using Partitioning Hierarchical Cluster (PHC) and using bridge nodes to allow interworking traffic between these WMNs to reduce the performance degradation, the unplanned deployment of WMNs are determinates their performance. [ABSTRACT FROM AUTHOR]

Location based services are becoming an emerging market due to technological advances achieved both at GSM phone operators and the multimedia nature of the mobile handsets. In this paper, a new methodology of mobile positioning integrating both GSM network using signal strengths and GPS readings in the light of an assisted GPS based approach. The methodology employs an extended Kalman filter approach in which the stochastic errors related to various measurements are appropriately characterized and modeled. The methodology uses Netmonitor software to retrieve network information including signal strength and cell-identities of various base transmitter stations (BTS). The distance from the mobile station (MS) to each BTS is therefore determined using Hata-Okumura radio propagation model. The different distances and the GPS readings are therefore combined in the framework of extended static Kalman filter. Once positioning is achieved, a .NET like application is implemented to access the Microsoft MapPoint Web Service, via the Internet (http protocol), which visualises the mobile's location on a map, finds nearby points of interest (POI) and computes routes between them. In order to demonstrate the feasibility of the proposal, experiment is carried out in Birmingham area and compared to the result yielded by the commercial software of Mobile Locate Ltd. An accuracy of less than 70 meters has been achieved, which shows substantial improvement over standard Timing Advance related techniques and the commercial software. [ABSTRACT FROM AUTHOR]

As wireless networks evolves towards the 3G and 4G architectures the mobile core networks provides a platform for all-IP convergence of mobile and fixed networks allowing for better integration of the Internet and cellular networks, providing better quality of service, charging mechanisms and integration of different services. Due to this convergence, there have been various evidences of interoperability limitations between the mobile and fixed networks such as protocol adaptation, end-to-end Quality of Service (QoS), charging and signalling interworking. Most of these limitations are currently been addressed by respective standards bodies and various proposals are being implemented. In this paper we investigate the signalling limitations across converged networks which are caused by the use of different Session Initiation Protocol (SIP) profiles for signalling in both mobile and fixed networks. We carried out various performance based simulations on the 3GPP proposed solution in which our results reveal critical shortcomings in the solution. We then proposed a new configuration for the system to enable the solution work more efficiently. [ABSTRACT FROM AUTHOR]