System-Level Analysis of Outer Loop Link Adaptation on Mobile WiMAX Systems
نویسندگان
چکیده
Link adaptation is a process of paramount importance to optimize the performance of wireless communication systems. However, standardization committees have not standardized link adaptation procedures in order to foster competitiveness among vendors. As a consequence, many research projects have been conducted on this field and several strategies have been presented and tested, mainly for High Speed Downlink Packet Access (HSDPA) and Long Term Evolution (LTE) systems. For mobile WiMAX systems (IEEE 802.16e standard) the use of approaches like outer loop link adaptation (OLLA) has not been reported as much as for other system technologies. In this context, this paper aims at providing a system-level analysis of OLLA applied to mobile WiMAX systems. We use a system-level simulator in order to assess the performance of OLLA in mobile WiMAX system. Keywords— Link adaptation, WiMAX 802.16e, system-level
منابع مشابه
On the System-Level Analysis of Outer Loop Link Adaptation for IEEE 802.16e Systems
Link adaptation is a process of paramount importance to optimize the performance of wireless communication systems. However, standardization committees have not standardized link adaptation procedures in order to foster competitiveness among vendors. As a consequence, many research projects have been conducted on this field and several strategies have been presented and tested, mainly for High ...
متن کاملLink Adaptation in Mobile WiMAX Systems under the ITU-R Mix of Channels
In this paper, adaptive modulation and coding (AMC) and repetition coding are considered as means to improve the link performance of Mobile WiMAX systems. The system evaluation is done starting from the applications error requirements in the attempt to achieve an optimum utilization of the available resources based on the variable channel conditions, without degrading too much the overall perfo...
متن کاملAnalysis of Packet Loss and Latency Control for Robust IPTV over Mobile WiMAX and LTE Assessment (RESEARCH NOTE)
Abstract The streamed audio video (AV) content for IPTV across mobile WiMAX channel, the different schemes were discussed to reduce the noise, packet loss and latency. The objective of this paper is to verify the effectiveness of forward error correction (FEC) techniques and to suggest the techniques for robustness problems and to analysis the issues either due to AV coding encoding or due to...
متن کاملDynamic Load Carrying Capacity of Mobile-Base Flexible-Link Manipulators: Feedback Linearization Control Approach
This paper focuses on the effects of closed- control on the calculation of the dynamic load carrying capacity (DLCC) for mobile-base flexible-link manipulators. In previously proposed methods in the literature of DLCC calculation in flexible robots, an open-loop control scheme is assumed, whereas in reality, robot control is achieved via closed loop approaches which could render the calculated ...
متن کاملThoughput Performance of Adaptive Modulation and Coding Scheme with Link Adaptation for Mimo-wimax Downlink Transmission
The mobile WiMAX system is based on the IEEE 802.16m standard which is used to develop an advanced air interface (AAI) to meet the requirements for IMT-Advanced next generation networks , which are able to provide high speed access and are used to provide a rate of broadband data for low mobility scenarios up to 1 Gbit/sec. This paper investigates the application of link adaptation techniques (...
متن کامل