Review of Radio Resource Management For IMT-Advanced System

2015 ◽  
Vol 72 (4) ◽  
Author(s):  
M. K. Ismail ◽  
A. A. M. Isa ◽  
M. S. Johal
Keyword(s):  
Resource Management ◽  
Packet Scheduling ◽  
Radio Resource Management ◽  
Mobile Wimax ◽  
Radio Resource ◽  
Air Interface ◽  
Lte Advanced ◽  
Radio Resources ◽  
Advanced System

This paper provides a review of radio resource management technologies that can be used or proposed for OFDMA-based IMT-Advanced system.  IMT-Advanced specifications significantly enhanced the existing IMT 2000 standard which are represented by LTE-Advanced and mobile WiMAX as the main successful candidates. One of the key components for OFDMA is Radio Resource Management (RRM) which is used to manage radio resources for the air interface in a cellular network. The main purpose of RRM is to utilize the available radio resources efficiently. The RRM tools such as power control, handover, packet scheduling, resource allocation and, load and admission control are needed to be controlled to maximize the performance efficiency in the wireless networks. By controlling these RRM tools, we are able to maximize the number of users in the network and let the users experience the best Quality of Service (QoS) and throughput.

A Survey of Radio Resource Management in Cognitive Radio Networks

2013 ◽  
pp. 264-289
Author(s):  
Chengshi Zhao ◽  
Wenping Li ◽  
Jing Li ◽  
Zheng Zhou ◽  
Kyungsup Kwak
Keyword(s):  
Cognitive Radio ◽  
Resource Management ◽  
Dynamic Spectrum Access ◽  
Radio Resource Management ◽  
Radio Spectrum ◽  
Radio Resource ◽  
Green Communications ◽  
Radio Resources ◽  
Adaptive Power

The framework of “green communications” has been proposed as a promising approach to address the issue of improving resource-efficiency and the energy-efficiency during the utilization of the radio spectrum. Cognitive Radio (CR), which performs radio resource sensing and adaptation, is an emerging technology that is up to the requests of green communications. However, CR networks impose serious challenges due to the fluctuating nature of the available radio resources corresponding to the diverse quality-of-service requirements of various applications. This chapter provides an overview of radio resource management in CR networks from several aspects, namely dynamic spectrum access, adaptive power control, time slot, and code scheduling. More specifically, the discussion focuses on the deployment of CR networks that do not require modification to existing networks. A brief overview of the radio resources in CR networks is provided. Then, three challenges to radio resource management are discussed.

scholarly journals Survey on the Research Challenges of Radio Resource Management in LTE-A and the Current Proposed Solutions for these Challenges

2013 ◽  
Vol 7 (3) ◽  
pp. 626-637
Author(s):  
Huthaifa Al-Jaradat ◽  
Kumbesan Sandrasegaran
Keyword(s):  
Resource Management ◽  
Packet Scheduling ◽  
Radio Resource Management ◽  
Interference Management ◽  
Radio Resource ◽  
International Telecommunication Union ◽  
International Telecommunication ◽  
Lte Advanced ◽  
Technical Challenges

Long Term Evolution-Advanced (LTE-Advanced) has been recently submitted by the 3rd Generation Partnership Project (3GPP) to the International Telecommunication Union (ITU) as one of the candidates 4G technologies. LTE-Advanced is expected to outperform its predecessor (i.e. LTE) by providing data rate up to 1Gbps and 500 Mbps in the downlink and uplink directions, respectively, also by supporting higher speed mobility (i.e. 500 km/h). In order to allow such advances in the performance, Radio Resource Management (RRM) must be effectively utilized. This paper studies the technical challenges associated with some of the RRM tasks (including Packet scheduling, interference management and handover control), in addition it presents from the open literature some of the proposed solutions to these technical challenges.

Scheduling Algorithms and Radio Resource Management in WiMAX

2014 ◽  
pp. 219-238
Author(s):  
Yasser Sadri ◽  
Mohammdhossein Norouzibeirami
Keyword(s):  
Quality Of Service ◽  
Resource Management ◽  
High Speed ◽  
Radio Resource Management ◽  
Scheduling Algorithms ◽  
Ieee 802.16 ◽  
Wireless Access ◽  
Radio Resource ◽  
Radio Resources

The IEEE 802.16 has defined wireless access systems called WiMAX. These systems provide high-speed communications over long distances. To support multimedia applications, some service classes with Quality of Service (QoS) requirements are defined in IEEE 802.16, but the QoS scheduler is not standardized. The scheduling mechanism has a significant effect on the performance of WiMAX systems for use of bandwidth and radio resources. Some scheduling algorithms have been introduced by researchers. This study focuses on scheduling techniques proposed for WiMAX. The authors analyze a number of WiMAX scheduling algorithms in the Point-to-Multi-Point (PMP) mode and highlight their main points.

Toward a reconfigurable MIMO downlink air interface and radio resource management: the SURFACE concept

2010 ◽  
Vol 48 (6) ◽  
pp. 22-29 ◽  
Author(s):  
Istvan Kovacs ◽  
Luis Ordonez ◽  
Miguel Navarro ◽  
Eduard Calvo ◽  
Javier Fonollosa
Keyword(s):  
Resource Management ◽  
Radio Resource Management ◽  
Radio Resource ◽  
Air Interface ◽  
Mimo Downlink
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