Recent studies have shown that the superposition of packet sequences generated by packetized voice sources with speech detection exhibit high burstiness due to inherent correlations between successive interarrival times in the superposition stream. In a packet voice multiplexer without bit dropping, these correlations tend to cause significantly larger queueing delays and packet losses than wou...

Mobile Ad hoc network [MANET] consists of mobile nodes without any fixed infrastructure, communicating through wireless medium. In MANET, Congestion occurs in any intermediate nodes when data packets travel from source to destination and they incur higher packet loss rate and long delay, which cause the degradations in performance of a network. Congestion can be controlled by Active Queue Manag...

This paper proposes an integrated Power-based system for QoS provisioning in 3G WCDMA cellular networks. The proposed system comprises a QoS-profile aware Call Admission Control (CAC), a QoS-profile driven congestion control, and a reservation-less real cell boundary aware handoff prioritization mechanism. Both Congestion control and handoff prioritization incorporate user service degradation d...

Call admission control (CAC) is a key for ensuring the quality of service (QoS) in wireless multiservice network. With the advances in wireless communication technology and the growing interest in deploying multimedia services in wireless networks, the issue of providing an efficient CAC has come to the fore. A suitable CAC for the multimedia service networks is expected to make efficient use o...

Multimedia applications require the transmission of real-time streams over a network. These streams often exhibit variable bandwidth requirements, and require high bandwidths and guarantees from the network. This creates problems when such streams are delivered over the Internet. To solve these problems, recently, a small set of differentiated services has been introduced. Among these, Premium ...

In this paper we present the behavior of JPEG2000 coding scheme over noisy or congested communication channels and highlight the cost analysis aspect. Two error schemes are considered including bit errors and packet dropping effects. Two bit error methods are used, consisting of flipping or dropping the bits, and various packet sizes are put to the test of packet dropping. Extensive performance...

Linear Increase/Multiplicative Decrease (LIMD) has typically been the congestion control paradigm of choice in the traditional Internet with tail-drop routers. In recent years, routers with fair packet dropping policies (e.g., RED) are increasingly being deployed in the Internet. In the context of a network with fair packet dropping routers, we challenge the popular notion that Linear Increase/...

Handoff algorithm is used in wireless cellular systems to decide when and to which base station (BS) to handoff in order that the services can be continued uninterrupted. In this paper, we propose a handoff algorithm based on the neural network in a joint system of terrestrial and high altitude platform station (HAPS) cellular systems. As a revolutionary wireless system, HAPS can supply service...