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A controversial technical discussion is raised whether WiMAX or LTE is the most promising 4G technology. Since LTE and WIMAX as 4G systems have both adopted OFDM as the preferred physical technology for better spectrum efficiency, the RF parts of those systems have to face major challenges. Hence the extensively applied error vector magnitude (EVM) can be used as an effective and efficient method...
With the IEEE 802.16e standard for mobile WiMAX the course for new 4G mobile radio communication systems is set. It offers significantly higher data rates than GSM or WCDMA/UMTS and supports different handover mechanisms and QoS features in contrast to WiFi (IEEE 802.11 g) on the OSI-layer 2 (L2). Since WiMAX-devices are hardly available today and protocol optimizations are strongly restricted with...
The WiMAX technology based on the IEEE802.16-d standard is a broadband wireless access (BWA) technology and considered to be an important ingredient of the composition of the next generation networks (NGN). Till date, due to lack of deployment, not enough data is available in terms of its operational capabilities and efficiencies. The main objective of this paper is to evaluate, analyze and compare...
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