Over the past twenty years, the transformation of a relatively simple computer network used by a few researchers into a global Internet, involving hundreds of millions of people and generating a new economic order, took government, business and education, by surprise. Given the well-established tendency for people to underestimate the extent and rate of technological change, it seems reasonable...

Deployment of conversational real-time applications like VoIP (Voice over IP) and videoconferencing require new challenges in Long-Term Evolution (LTE) networks such as Internet. Quality of video delivered over the Internet has been determined in terms of Quality-of-Service (QoS) and Quality-of-Experience (QoE). QoS includes packet delivery ratio, average end-to-end delay, throughput, routing o...

IEEE 802.11e WLAN has provided a new access mechanism called the hybrid coordination function (HCF) for quality-of service (QoS) support[1]. Here, we provide HCF scheduler to allocate transmission opportunities (TXOPs) for the stations. TXOP is the time under which a station can send its burst of data packets to other stations. An station can be either in the good or bad channel state and it ca...

In the Internet Age, many new services are being created everyday, some of which will require real-time support, e.g. voice over IP, videoconference, remote monitoring of control processes, streaming services. To fulfil the requirements of such services, proper Quality-of-Service control mechanisms must be used either by transit networks as well as by access networks. In the first case, there a...

The proliferation of IEEE 802.11-based wireless LANs opens up avenues for creation of several tetherless and mobility oriented services. Most of these services, like voice over WLAN, media streaming etc., generate delay and bandwidth sensitive traffic. These traffic flows require undisrupted network connectivity with some QoS guarantees. Unfortunately, there is no adequate support built into th...

Broadcast communication plays a critical role in ad hoc networks especially vehicular communication where a large number of applications are being envisioned to use the broadcast services of IEEE 802.11p. These safety applications exchange messages at very low rates compared to voice and streaming applications but have very stringent latency requirements. The broadcast packets undergoing collis...

Consumers and businesses alike are embracing video in all its applications, ushering in a new era of innovation, user value, and business opportunity. Enterprises, for example, are deploying desktop video as part of their unified communications systems, complementing their room-based video conferencing systems. The entry of cable companies into the voice services business is driving the operati...

Satellite networks provide unique challenges that can restrict users’ quality of service. For example, high packet erasure rates and large latencies can cause significant disruptions to applications such as video streaming or voice-overIP. Network coding is one promising technique that has been shown to help improve performance, especially in these environments. However, implementing any form o...

POF offers many benefits to the user. It is lightweight, robust, cheap and easy to install. A simple sharp blade can be used to cut POF, without the need for polishing afterwards. The use of 650nm red light (LED) makes it completely safe. This safety feature brings additional benefits to the installer, as red light can be easily seen by the human eye to diagnose if the link is good. Perhaps tho...

Due to broadband internet access and shifting of paradigm from voice to data services, the internet traffic has doubled every year [1]. Increasing demand for multimedia live streaming and other bandwidth hungry services is on its great pace. The Cisco census in Figure 1 shows that these bandwidth hungry applications like IPTV, video chat, VOD, video conferencing, e-commerce, online banking etc ...