Tanzania telecommunication sector has witnessed fast growth in the number of mobile telephone users now served by seven cellular operators. Until February 2012, there were about 26 million mobile phone subscribers served by more than 4,000 base stations spread all over the country. Despite the many advantages brought by these systems, there is increased public concern over possible adverse heal...

Since their emergence in 1970's, wireless networks have become increasingly popular in the computing industry. These networks provide mobile users with ubiquitous computing capability and information access regardless of the location. There are currently two variations of mobile wireless networksinfrastructured and infrastructure less networks. The infra-structured networks, also known as Cellu...

This paper addresses the problem of locating base stations in a certain area which is highly populated by mobile stations; each mobile station is assumed to select the closest base station. Base stations are modeled by players who choose their best location for maximizing their uplink throughput. The approach of this paper is to make some simplifying assumptions in order to get interpretable an...

As we know the wireless mesh network is playing a vital role in today’s network infrastructure. Wireless mesh networks (WMNs) have achieved significant development because of fast deployment, easy maintenance and low investment compared with traditional wireless networks. The structure of WMN consists of base stations, distribution system (backbone), links and the mobile stations. The issue is ...

Smartphones have become essential devices for the daily activities that the human being performs. Its proliferation has increased the cellular infrastructure in an effort of the mobile operators to satisfy the demand. Due to the cellular network planning is performed considering the peak hour, a large number of base stations are deployed, maintaining the same number of base stations even in low...

Mobile phones continue to develop with more user features being implemented as new technology is released commercially. The boundaries will blur between internet, broadcast and mobile telecommunications. Significantly more radio base stations will be needed as communications technology nears the physical limits in spectrum efficiency and to support increasing data-rates. The impact of transmitt...

In this paper, a new hierarchical multihop routing algorithm and its performance evaluation is presented for fully dynamic wireless networks. The routing algorithm operates on a virtual topology obtained by partitioning the routing information for mobile terminals and mobile base stations into a hierarchical, distributed database. Based on the virtual topology, each mobile base station stores a...

In this paper, we propose how to control the uplink transmit power of a mobile station (MS) during soft handoff in order to reduce the error probability of downlink transmit power control command bit without macro diversity gain at the base station controller (BSC). The uplink transmit power control is based on uplink transmit power control commands from all base stations (BS’s) belonging to th...

Mobile phone already allowed to be used in some commercial airlines and the first standard to be deployed is 1800MHz GSM band. After Many studies and debate, the regulation authorities have spelled out the requirement for picocell and mobile phone to be used in aircraft so as not to be interfered with avionics system in the air. The main objective is to limit the mobile phone at the lowest tran...