Whereas cellular wireless communication systems are subject to short-and long-term fading. The effect of wireless channel has largely been ignored in most of the teletraffic assessment researches. In this paper, a mathematical teletraffic model is proposed to estimate blocking and forced termination probabilities of cellular wireless networks as a result of teletraffic behavior as well as the o...

We provide results for implementing resilient consensus for a (countably) infinite collection of processes. – For a known number of faults, we prove the following equivalence result: For every t ≥ 1, there is a t-resilient consensus object for infinitely many processes if and only if there is a t-resilient consensus object for t + 1 processes. – For an unknown or infinite number of faults, we c...

We introduce a channel allocation strategy to support both real-time traac such as voice and video and non-real-time traac in a wireless CDMA communication system using the internet protocols TCP, UDP and RTP. It is shown by simulation that this approach is useful to achieve fair link sharing, high link utilization, throughput and low blocking probabilities for real-time traac.

An analytical framework for the efficient evaluation of the performance of complete sharing (CS) and complete partitioning (CP) resource sharing policies under a newly proposed general channel management strategy for multi-class traffic in Low Earth Orbit-Mobile Satellite Systems (LEO-MSS) is presented. This strategy gives a higher priority to handover calls over new calls by combine the guard ...

This paper illustrates a channel sub-rating allocation policy for finite population cellular system. In this policy, certain channels are permitted to transiently divide into two channels at half the original rate to adapt handoff calls. As a result, one half can be employed to serve the existing call and the other half to serve the handoff request so that we can get rid of forced termination o...

In this study, a new handoff strategy to improve the performance of wireless mobile networks is presented. It has been found form this study that the dropping probability of handoff calls is drastically reduced compared to the existing method of channel reservation strategy of handoff calls and the performance of new calls can be improved. The strategy is that the new call should be delayed the...

In cellular communication systems, directional multibeam antennas at cell sites can be used to reduce co-channel interference, increase frequency reuse and improve system capacity. When combined with dynamic channel assignment (DCA), additional improvement is possible. We propose a multibeam scheme using dynamic channel assignment across multiple sectors. A cell is divided into several sectors,...

Hierarchical Cellular Networks (HCN) offer more efficient channel utilization and better quality of service (QoS) under the high tele-traffic condition compared to the single-tier system. One of the important measures of QoS in HCN as in any single-tier system is the handoff dropping rate. Although the existing approaches such as guard channel and queuing can reduce forced termination probabili...

In localization applications, the line-of-sight between anchors and targets may be blocked by obstacles in the environment. A target without line-of-sight to enough number of anchors cannot be unambiguously localized and is, therefore, said to be in a blind-spot. In this paper, we analyze the blind-spot probability of a typical target by using stochastic geometry to model the randomness in the ...