naa a22 4500 510798942 CHVBK 20180411083346.0 cr unu---uuuuu 180411e20130901xx s 000 0 eng 10.1007/s11277-013-1087-y doi (NATIONALLICENCE)springer-10.1007/s11277-013-1087-y GRA Based Network Selection in Heterogeneous Wireless Networks [Elektronische Daten] [Rajiv Verma, Niraj Singh] 4G wireless networks will integrate heterogeneous technologies such as Wireless LAN and third generation (3G) cellular networks and have the capability to offer various services at any time as per user requirements, anywhere with seamless interoperability at affordable cost. One important challenge in such a heterogeneous wireless environment is to enable network selection mechanisms in order to keep the mobile users always best connected anywhere and at any time. In this paper, a multi-criteria access network selection algorithm is proposed in Worldwide Interoperability for Microwave Access-Wireless Fidelity environment, in order to facilitate the provision of high quality services and at the same time to satisfy different types of user service level agreements. Analytical hierarchy process (AHP) and grey relational analysis (GRA) methods are applying for optimal access network selection. The proposed methodology combines the AHP to decide the relative weights of criteria set according to network's performance, as well as the GRA to rank the network alternatives. The advantages of the GRA method are that the results are based on the original data, the calculations are simple and straightforward, and finally it is one of the best methods to make decision under heterogeneous wireless network environment. Springer Science+Business Media New York, 2013 Multiple criteria decision making (MCDM) nationallicence AHP nationallicence GRA nationallicence WiMAX-Wi-Fi scenario nationallicence Verma Rajiv National Institute of Technology, Kurukshetra, India aut Singh Niraj National Institute of Technology, Kurukshetra, India aut Wireless Personal Communications Springer US; http://www.springer-ny.com 72/2(2013-09-01), 1437-1452 0929-6212 72:2<1437 2013 72 11277 https://doi.org/10.1007/s11277-013-1087-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s11277-013-1087-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Verma Rajiv National Institute of Technology, Kurukshetra, India aut NATIONALLICENCE 700 1- Singh Niraj National Institute of Technology, Kurukshetra, India aut NATIONALLICENCE 773 0- Wireless Personal Communications Springer US; http://www.springer-ny.com 72/2(2013-09-01), 1437-1452 0929-6212 72:2<1437 2013 72 11277 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer