By Leijia Wu, Kumbesan Sandrasegaran
This booklet discusses the fundamental proposal of universal Radio source administration (CRRM), specifically at the Radio entry applied sciences choice a part of CRRM. It introduces interplay features (information reporting functionality and RRM selection help functionality) and 4 interplay levels (from low to very excessive) of CRRM. 4 attainable CRRM topologies (CRRM server, built-in CRRM, Hierarchical CRRM, and CRRM in person terminals) are defined. The publication offers varied Radio entry applied sciences choice algorithms, together with unmarried criterion and a number of standards established algorithms are awarded and compares them. ultimately, the ebook analyses the benefits and drawbacks of different choice algorithms.
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Additional info for A Study on Radio Access Technology Selection Algorithms
Zhang, A QoS-guaranteed cell selection strategy for heterogeneous cellular systems. ETRI J. 28(1), 77–83 (2001) 24. W. Zhang, Handover decision using fuzzy MADM in heterogeneous networks, in IEEE Wireless Communications and Networking Conference (WCNC 2004) 25. M. Alkhawlani, A. Hussein, Intelligent radio network selection for next generation networks, in The 7th International Conference on Informatics and Systems (INFOS 2010), Cairo, March 2010, pp. 28–30 26. M. Alkhawlani, A. Hussein, Radio network selection for tight-coupled wireless networks, in The 7th International Conference on Informatics and Systems (INFOS) Cairo, March 2010, pp.
2] proposed three two-complex policy based algorithms: VG*VU, IN*VG, and VG*IN. The general format is Policy 1*Policy 2. A new call will be allocated using Policy 1 first. If the capacity of the preferred RAT is full, then the call will be assigned using Policy 2. For example, in the VG*IN algorithm, an outdoor voice call will be allocated to GERAN according to the VG policy. If the capacity of GERAN is full, the call will be assigned to UTRAN according to the IN policy. In these algorithms, a service request is only blocked when both of the two policies are violated so that the blocking probability can be significantly reduced.
A challenge of this algorithm is that it relies on the location prediction information, which may be hard to be obtained in practice. The QoS negotiation framework and detailed signaling procedures for this algorithm are discussed in . 5 Fuzzy Logic Based Algorithms A number of RAT selection algorithms applying the concept of fuzzy logic have been studied in the literature. g. user demands and operator preferences) is given in [18, 19]. 5 Fuzzy Logic Based Algorithms 31 reinforcement learning, and multiple decision-making.
A Study on Radio Access Technology Selection Algorithms by Leijia Wu, Kumbesan Sandrasegaran