Availability and Performance Evaluation for Automatic Protection Switching in TDMA Wireless System
نویسندگان
چکیده
In this paper, we compare the availability and performance of a wireless TDMA system with and without automatic protection switching. Stochastic reward net models are constructed and solved by SPNP (Stochastic Petri Net Package). Hierarchical decomposition is adopted to simplify the analysis. The optimization of the number of guard channels reserved for the handoff calls is studied. Numerical results prove the accuracy of the decomposition and show the significant improvement of the availability and the performance indexed as the new call blocking probability and handoff call dropping probability, brought by automatic protection switching.
منابع مشابه
Performability modelling of wireless communication systems
The high expectations of performance and availability for wireless mobile systems has presented great challenges in the modelling and design of fault tolerant wireless systems. The proper modelling methodology to study the degradation of such systems is so-called performability modelling. In this paper, we give overview of approaches for the construction and the solution of performability model...
متن کاملPerformance Evaluation of AODV, DSR and WRP over (TDMA) and (CSMA)
MANET [1] is a cluster of wireless mobile computer where node shift in self-directed manner in any way .The developments in wireless technology in the present age have created networks with low cost and low power consumption. MANET is a type of multi-hop system, communications less and the most significant self-organizing. Due to wireless and spread nature there is an immense challenge for syst...
متن کاملDevelopment of simulation model for performance evaluation of feed water system in a typical thermal power plant
The present paper deals with development of a simulation model for the performance evaluation of feed water system of a thermal power plant using Markov Birth-Death process and probabilistic approach. In present paper, the feed water system consists of four subsystems. After drawing transition diagram for feed water system, differential equations are developed and then solved recursively using ...
متن کاملInternet Engineering Task Force (ietf) Benchmarking Terminology for Protection Performance
This document provides common terminology and metrics for benchmarking the performance of sub-IP layer protection mechanisms. The performance benchmarks are measured at the IP layer; protection may be provided at the sub-IP layer. The benchmarks and terminology can be applied in methodology documents for different sub-IP layer protection mechanisms such as Automatic Protection Switching (APS), ...
متن کاملSensitivity Assessment of Lightning Protection Device Aging Effect on Distribution Substation Insulation
Insufficient electrical endurance of equipment and insulation failure against overvoltage is one of the most effective reasons for failure the power line. Lightening, switching or other disruptive parameters can cause line outage or distribution substation failure. There are different devices used to improve the safety, reliability, and power quality of the system. Surge arresters are one of t...
متن کامل