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Fairness and QoS in Multihop Wireless Networks
White Paper In multihop wireless networks, fair allocation of bandwidth among different nodes is one of the critical problems that affects the serviceability of the entire system. The paper studies various queuing schemes for multihop wireless networks and... [18 Jul 2008]
Dynamic Bandwidth Allocation Schemes to Improve Utilization Under Non-Uniform Traffic in Ethernet Passive Optical Networks
White Paper In this paper, conventional bandwidth allocation schemes in Ethernet Passive Optical Network (EPON) are shown to suffer from poor utilization under the non-uniform traffic, particularly as the number of ONUs, guard time and round-trip time increase. [11 Jul 2008]
A Class-Based Dynamic Bandwidth Allocation Scheme for EPONs
White Paper This paper first reviews some existing bandwidth allocation schemes for EPON in the literature. Then the paper proposes a novel scheme called Dynamic Weight Priority Scheduling (DWPS), which not only guarantees all ONUs fairly share the bandwidth... [11 Jul 2008]
A Rate Control Scheme for H.264 Video Under Low Bandwidth Channel
White Paper Although some rate control schemes are proposed to circumvent the dilemma, the inaccurate prediction model and improper bit allocation deter H.264 application on low bandwidth channel. The dilemma of the Quantization Parameter (QP) being involved... [11 Jul 2008]
Streaming Stored Continuous Media Over Fair-Share Bandwidth
White Paper Under fair-share bandwidth conditions, the paper evaluates the performance of a series of data transmission schemes for non-layered CM, and of several bandwidth allocation schemes for streaming layered CM. [10 Jul 2008]
Distributed On-Line Schedule Adaptation for Balanced Slot Allocation in Bluetooth Scatternets and Other Wireless Ad-Hoc Network Architectures
White Paper The emergence of the Bluetooth multi-channel technology has inspired more refined research on distributed link scheduling schemes for Bluetooth ad hoc networks (termed as scatternets). These distributed techniques are divided in hard and soft... [03 Jul 2008]
Service Differentiation With MPLS
White Paper Both use dynamic bandwidth allocation schemes and are compared with a fixed bandwidth allocation scheme for the QoS that users get. The first technique uses an adaptive algorithm that determines a required average throughput per source and adjusts... [25 Jun 2008]
An Analysis of TCP Startup Over an Experimental DVB-RCS Platform
White Paper Satellite systems are evolving towards higher available bandwidths and dynamic allocation based on instantaneous traffic rates offered at the stations, so called BoD (bandwidth on demand) channel sharing. [26 Dec 2007]
Service-Oriented Bandwidth Borrowing Scheme for Mobile Multimedia Wireless Networks
White Paper In order to provide Mobile Hosts (MHs) with highly satisfying degree of QoS in mobile communication systems, new and efficient bandwidth allocation schemes must be developed. Bandwidth is the most critical resource in mobile multimedia wireless... [07 Sep 2007]
Game-Theoretic Distributed Spectrum Sharing for Wireless Cognitive Networks With Heterogeneous QoS
White Paper Ubiquitous wireless networking calls for efficient Dynamic Spectrum Allocation (DSA) among heterogeneous users with diverse transmission types and bandwidth demands. As such, spectrum wastage may arise when the system-wise optimal allocation falls... [23 Aug 2007]
Service-Oriented Bandwidth Borrowing Scheme for Mobile Multimedia Wireless Networks
White Paper In order to provide Mobile Hosts (MHs) with highly satisfying degree of QoS in mobile communication systems, new and efficient bandwidth allocation schemes must be developed. Bandwidth is the most critical resource in mobile multimedia wireless... [17 Aug 2007]
MU-OFDM Power and Subchannel Allocation Performance on DSP
White Paper In order to maximize the capacity of a time-varying channel, wireless transceiver designers often implement adaptive modulation that adjusts transfer parameters such as power distribution, coding and modulation schemes, and signaling bandwidth. [11 Apr 2007]
Efficient Power Allocation for Coded OFDM Systems
White Paper One of the transmission schemes to overcome the frequency selectivity is Discrete Multi-Tone (DMT). Orthogonal Frequency Division Multiplexing (OFDM) is a transmission technique which divides the data into a number of independent frequency... [11 Apr 2007]
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