Performance Analysis of an Adaptive Soft Handoff Algorithm for Mobile Cellular Systems
نویسندگان
چکیده
In this paper, an adaptive soft handoff algorithm, which dynamically calculates the threshold values for soft handoff based on the received signal strength, is proposed for mobile cellular communication systems. An analytical model is developed to study the performance of soft handoff algorithms. Performance is evaluated in terms of the average number active set updates, the mean size of the active set, the mean time of soft handoff, the average signal quality and link degradation probability, where a link degradation is defined to be the event that the signal strength falls below a level required for satisfactory communication. The adaptive soft handoff is shown to yield a significantly better tradeoff than the handoff algorithm with static thresholds.
منابع مشابه
Adaptive call admission control and resource allocation in multi server wireless/cellular network
The ever increasing demand of the subscribers has put pressure on the capacity of wireless networks around the world. To utilize the scare resources, in the present paper we propose an optimal allocation scheme for an integrated wireless/cellular model with handoff priority and handoff guarantee services. The suggested algorithm optimally allocates the resources in each cell and dynamically adj...
متن کاملA Comparative Study on Handoff Algorithms for GSM and CDMA Cellular Networks
Received Jun 12, 2017 Revised Mar 30, 2017 Accepted Apr 14, 2017 The GSM, CDMA cellular systems are most trendy 2G and 3G digital cellular telecommunications systems, which is widely used throughout the world. These systems have many advantages such as high security, higher quality of call transmission over the long distances, low transmitted power, and enhanced capacity with more efficient uti...
متن کاملGeneric Adaptive Handoff Algorithms Using Fuzzy Logic and Neural Networks
Efficient handoff algorithms cost-effectively enhance the capacity and Quality of Service (QoS) of cellular systems. This research presents novel approaches for the design of high performance handoff algorithms that exploit attractive features of several existing algorithms, provide adaptation to dynamic cellular environment, and allow systematic tradeoffs among different system characteristics...
متن کاملAdaptive semi-soft handoff for Cellular IP networks
Rapid advances in wireless networking have led to more mobile phones, PDAs, and other digital mobile devices becoming ubiquitously connected to the Internet. As the demand of delay sensitive real-time applications for these portable devices increases, providing seamless connectivity to wireless networks becomes a critical issue. For this reason, a number of micro-mobility protocols, such as Cel...
متن کاملThe Evaluation and Performance Analysis for Soft Handoff in DMA Cellular Systems
The paper presents the analysis of integrated voice/data slotted code division multiple access (CDMA) system with soft handoff. Some important characteristics of the cellular configuration in soft handoff systems are used to propose a new design of an efficient call admission control (CAC) in CDMA systems. In particular, voice communications and data transmissions are considered. Voice terminal...
متن کامل