A Model for Terminal Energy Consumption Analysis in Wireless Heterogeneous Networks
Zhigang Cao · Beijing Youdian Xueyuan xuebao · 2007
To study the terminal energy consumption in wireless heterogeneous networks,a semi-Markov chain to reflect the communication states and deduct an analytical energy consumption evaluation model is adopted through the investigation of a terminal's operation modes.Comparing with the previous works,the proposed model will incorporate all the communication states of a terminal;the probability of successful wireless local area network(WLAN) discovery;and service type.Analysis results show that the energy consumption will increase as the call arrival rate and call holding time increase.Moreover,it is found that the energy consumption is approximately linear with respect to the voice call ratio and the probability of successful WLAN discovery.It is also found that making WLAN module in low energy consumption waiting state does not save terminal energy.