Enhanced Call Admission Control Algorithm Based on Grade of Service Optimization
Shengdong Xie · Jisuanji gongcheng · 2011
This paper proposes an Enhanced Rate Degradation Call Admission Control(ERDCAC) algorithm for multimedia wireless network to maximize Grade of Service(GoS).The degree of maximum degradation for Wide-Band(WB) when new Narrow-Band(NB) arrives is optimized.It develops a Markov model to analyze ERDCAC,and along with the measurements of call arrival rates of all traffics,the optimal threshold variable to acquire the maximal GoS is obtained by using exhausting search.Numeric results show that ERDCAC acquires better GoS compared with traditional rate regulation Call Admission Control(CAC) scheme.