Worldwide Interoperability for Microwave Access is an emerging wireless access networks
offering high data rates and good range. These features, in addition to moderate installation …

WiMAX has been at the center of attention in wireless communications during the last years.
Nonetheless, very few testbed or field trial measurement accounts have been reported in the …

Current research works have looked at improving the IPsec secured VoIP by arbitrarily
increasing bandwidth which is a very limited resource and cannot just be increased in real …

Abstract Wireless Metropolitan Area Networks based on IEEE 802.16 standards are in the
deployment phase in many countries. In fact, this technology can deliver high data rate while …

Wireless Interoperability for Microwave Access (WiMAX) is a prime contender in the
Broadband Wireless Access (BWA) market due to its next generation network architecture …

As a very large archipelago country, Indonesia has a high intensity of the natural disaster. In
many cases, the telecommunication infrastructure collapse during the disaster. Therefore, a …

Broadband Wireless Access technologies are expected to play a central role in next
generation networks. WiMAX, based on the IEEE 802.16 standard, has the potential to form …

This thesis reports on a measurement study to evaluate the speech quality for two widely
used VoIP codecs, Speex and SILK, on the Internet using the Perceptual Evaluation of …

Ubiquitous Internet access is one of the main challenges for the telecommunications
industry. The number of users accessing the Internet is growing at a very fast pace. At the …

Placed in the context of emergency communication situations, where all network
infrastructures are totally down, the audio communication is required in the first hours. This …