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2012 | Buch

Introduction Kapitel lesen Erstes Kapitel lesen

A Study on Radio Access Technology Selection Algorithms

verfasst von: Leijia Wu, Kumbesan Sandrasegaran

Verlag: Springer Berlin Heidelberg

Buchreihe : SpringerBriefs in Electrical and Computer Engineering

Enthalten in: Springer Professional "Wirtschaft+Technik" , Springer Professional "Technik"

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Über dieses Buch

This book discusses the basic idea of Common Radio Resource Management (CRRM), especially on the Radio Access Technologies selection part of CRRM. It introduces two interaction functions (information reporting function and RRM decision support function) and four interaction degrees (from low to very high) of CRRM. Four possible CRRM topologies (CRRM server, integrated CRRM, Hierarchical CRRM, and CRRM in user terminals) are described. The book presents different Radio Access Technologies selection algorithms, including single criterion and multiple criteria based algorithms are presented and compares them. Finally, the book analyses the advantages and disadvantages of the different selection algorithms.

Inhaltsverzeichnis

Frontmatter
Chapter 1. Introduction
Abstract
Wireless networks have become an important part of our everyday life. People enjoy the great convenience of wireless communications, for both personal and business purposes. Due to the explosive growth in the usage of wireless communications, radio spectrum has become a scarce and expensive commodity. Network operators need to obtain a license before transmitting on a licensed frequency band. In order to establish compatibility and inter-operability between different networks and network operators, standards are developed to specify the information transferred on all interfaces.
Leijia Wu, Kumbesan Sandrasegaran
Chapter 2. Common Radio Resource Management
Abstract
Radio Resource Management (RRM) refers to a group of mechanisms that are collectively responsible for efficiently utilizing RRUs within a RAT to provide services with an acceptable level of QoS. RRM mechanisms contain Power Control (PC), Handover Control (HC), Packet Scheduling (PS), Congestion Control (CC), and Admission Control (AC).
Leijia Wu, Kumbesan Sandrasegaran
Chapter 3. Single Criterion Based Algorithms
Abstract
Research in CRRM has many directions, e.g. policy translation and configuration, RAT selection, admission control, congestion control, horizontal handover, and packet scheduling. RAT selection algorithm is a key research area of CRRM at present. A suitable RAT selection algorithm can manage radio resources among multiple RATs more efficiently, enhance system performance, and provide better QoS to users. The RAT selection algorithm contains two parts: initial RAT selection and vertical handover (VHO). The former is used to allocate new calls to a suitable RAT and the latter is about transferring an ongoing call from its current serving RAT to a more suitable RAT.
Leijia Wu, Kumbesan Sandrasegaran
Chapter 4. Multiple Criteria Based Algorithms
Abstract
The algorithms introduced in the last chapter use a single criterion to make RAT selection decisions. In this section, more complicated algorithms using a number of RAT selection criteria are discussed.
Leijia Wu, Kumbesan Sandrasegaran
Metadaten
Titel
A Study on Radio Access Technology Selection Algorithms
verfasst von
Leijia Wu
Kumbesan Sandrasegaran
Copyright-Jahr
2012
Verlag
Springer Berlin Heidelberg
Electronic ISBN
978-3-642-29399-3
Print ISBN
978-3-642-29398-6
DOI
https://doi.org/10.1007/978-3-642-29399-3

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