Network selection based on available lin bandwidth in multi-access networks
Network selection based on available lin bandwidth in multi-access networks作者机构：Department of Electronics and Communication Engineering DAV Institute of Engg. εt Technology Jalandhar Punjab India Department of Electronics and Communication Engineering National Institute of Technology Kurukshetra Haryana India Electronics and Communication Engineering Department Thapar University Patiala Punjab India
出 版 物：《Digital Communications and Networks》 (数字通信与网络（英文版）)
年 卷 期：2016年第2卷第1期
页 面：15-23页
学科分类：0810[工学-信息与通信工程] 0808[工学-电气工程] 0809[工学-电子科学与技术（可授工学、理学学位）] 0839[工学-网络空间安全] 08[工学] 0835[工学-软件工程] 0812[工学-计算机科学与技术（可授工学、理学学位）]
主 题：2G 3G Heterogeneous net- works Bootstrap approximation Avaitabie bandwidth
摘 要：One of the important aspects of seamless communication for ubiquitous computing is the dynamic selection of the best access network for a multimodal device in a heterogeneous wireless environment. In this paper, we consider available bandwidth as a dynamic parameter to select the network in heterogeneous environments. A bootstrap approximation based technique is firstly utilized to estimate the available bandwidth and compare it with hidden Markov model based estimation to check its accuracy. It is then used for the selection of the best suitable network in the heterogeneous environment consisting of 2G and 3G standards based wireless networks. The proposed algorithm is implemented in temporal and spatial domains to check its robustness. The numerical results show that the proposed algorithm gives improved performance in terms of estimation error （less than 15%）, overhead （varies from 0.45% to 72.91%） and reliability （approx. 99%）as compared to the existing algorithm.
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