Current tools for integrating spatial sound into Virtual Environment interfaces have not adequately addressed the problem of resource management in the sound generation process. Such systems place a hard limit on the number of sounds they support or in some cases they fail to maintain real-time evaluation rates when computational resources are exceeded. The research described in this dissertati...

World Bank Without wishing to incriminate them in any way, I am grateful to Deon Filmer, Maureen Lewis, and Martin Ravallion for comments on an earlier draft of this paper. The findings, interpretations and conclusions expressed in this paper are entirely those of the author. They do not necessarily represent the views of the World Bank, its Executive Directors, or the countries they represent....

The paper describes SABUL, an application level data transfer protocol for data intensive applications over high bandwidth-delay product networks. SABUL is designed for reliability, high performance, fairness, and stability. This unidirectional protocol uses UDP to transfer data and TCP to send back control messages. A rate based congestion control that tunes the inter-packet transmission time ...

A number of emerging Internet applications such as video-conferencing and live multimedia broadcasts from Internet TV stations will rely on scheduling algorithms in switches and routers to guarantee performance and an acceptable level of quality of service. Fairness in packet schedulers is an intuitively desirable property with practical value; fair schedulers such as Weighted Fair Queueing are...

In the field of wireless communications, it is difficult to achieve good performance and fairness simultaneously, especially in advanced wireless local area networks (LANs), such as 802.11a/b/g, with multi-rate modulation. Although the long-term equal access probability results in throughput fairness, there is considerable performance degradation and unfair channel access time. We address the p...

In this paper, we show that such mismatches can be minimized by employing dynamic layer rate allocation at the sender's side by taking advantage of the recent development in layered video coding. Specifically, we study the optimization criteria for layer rate allocation, and propose a metric called Fairness Index, which fairly reflects the degree of a receiver's satisfaction. We then formulate ...

Transmission Control Protocol (TCP) is a reliable, end-to-end transport protocol, which is most widely used for data services and is very efficient for wired networks. However, experiments and research showed that TCP's congestion control algorithm performs very poorly over Wireless Ad Hoc Networks with degraded throughputs and severe unfairness among flows. This thesis studies fairness and thr...

The ad hoc network is a continuously self-configuring and decentralized network where nodes communicate with each other without the fixed network infrastructure or centralized administration. TCP (Transmission Control Protocol) is a connection-oriented transport protocol that provides a reliable exchange of data streams. Implementation of TCP in wireless networks has many challenges such as the...

Carrier Aggregation (CA) is one of the Long Term Evolution Advanced (LTE-A) features that allow mobile network operators (MNO) to combine multiple component carriers (CCs) across the available spectrum to create a wider bandwidth channel for increasing the network data throughput and overall capacity. CA has a potential to enhance data rates and network performance in the downlink, uplink, or b...