adaptation rate
RSS adaptation rateScalability Analysis of Rate Adaptation Techniques in Congested IEEE 802.11 Networks: An ORBIT Testbed Comparative Study
White Paper Recent real-world measurements in dense congested radio environments have pointed out the inefficiency of frame error-based bit-rate adaptation mechanisms, which significantly reduce network capacity by misinterpreting frame errors due to collisions. [11 Jul 2008]
Link Adaptation in OFDM Systems
White Paper Link Adaptation (LA) is a powerful means of increasing throughput in wireless channels by customizing the transmission rate based on channel state information (CSI) at the transmitter. This paper considers link adaptation in an orthogonal frequency... [10 Apr 2008]
About the 10 Gigabit Ethernet Standard
White Paper The rate adaptation mechanism is known as open loop control. The 10 GbE MAC operates at 10 Gbps at its service interface (towards PHY) and rate-adapts between MAC PHY layers to accommodate slightly different LAN PHY and WAN PHY data rates by... [07 Feb 2008]
TCP-Friendly Internet Video With Smooth and Fast Rate Adaptation and Network-Aware Error Control
White Paper First, a new rate adaptation mechanism called the Smooth and Fast Rate Adaptation Mechanism (SFRAM) is developed based on the TCP-throughput equation. SFRAM not only achieves TCP-friendliness but also provides a smooth and fast rate adaptation for... [14 Jan 2008]
Proxy-Based TCP-Friendly Streaming Over Mobile Networks
White Paper At the same time, TCP-friendly rate-adaptation behavior for streaming will become an important IETF requirement. The paper considers two approaches for achieving TCP-friendliness: first, by tunneling RTP packets over TCP and secondly by employing... [14 Jan 2008]
TCP-Aware Resource Allocation in CDMA Networks
White Paper The work discusses in this paper explores cross-layer optimization of the rate adaptation feature of cellular networks to optimize throughput of a single long-lived TCP session. However, the set of data rates as well as the scheduler's rate... [26 Dec 2007]
Performance Evaluation of TCP/IP Over EDGE
White Paper The performance of TCP was examined under various channel conditions with and with-out the link adaptation scheme of EGPRS. The link adaptation scheme improves the TCP performance under poor channel conditions. [26 Dec 2007]
Improving the Performance of TCP Wireless Video Streaming With a Novel Playback Adaptation Algorithm
White Paper This paper proposes a playback adaptation algorithm for video streaming with TCP in wireless networks where both handoffs and random wireless errors are possible. After this procedure is performed, the client adjusts the playback rate according to... [19 Dec 2007]
A Hybrid Adaptation Protocol for TCP-Friendly Layered Multicast and Its Optimal Rate Allocation
White Paper Existing protocols usually perform adaptation at the receiver's side and use static rate allocation techniques at the sender's side. As a result, significant mismatches between the fixed transmission rates and the heterogeneous and dynamic rate... [05 Dec 2007]
TCP Over CDMA2000 Networks: A Cross-Layer Measurement Study
White Paper Modern cellular channels in 3G networks incorporate sophisticated power control and dynamic rate adaptation which can have a significant impact on adaptive transport layer protocols, such as TCP. Though there exists studies that have evaluated the... [06 Nov 2007]
Quality-of-Service Driven Power and Rate Adaptation for Multichannel Communications Over Wireless Links
White Paper This paper proposes a Quality-of-Service (QoS) driven power and rate adaptation scheme for multichannel communications systems over wireless links. Under the framework of convex optimization, the paper develops the optimal adaptation algorithms. [31 Aug 2007]
Quality-of-Service Driven Power and Rate Adaptation Over Wireless Links
White Paper This paper proposes a Quality-of-Service (QoS) driven power and rate adaptation scheme over wireless links in mobile wireless networks. First, the paper derives an optimal adaptation policy by integrating information theory with the concept of... [31 Aug 2007]
Multimode Precoding for MIMO Wireless Systems
White Paper This adaptation is done by varying the number of substreams and the rate of each substream in a precoded spatial multiplexing system. The theoretical performance benefits of MIMO systems, however, are irrelevant unless low error rate, spectrally... [31 Aug 2007]
Adaptation of Multiple Access Parameters in Time Hopping UWB Cluster Based Wireless Sensor Networks
White Paper Flexibility in adjusting the processing gain of UWB systems makes it possible to tune the data rate and transmission range to fulfill the requirements of specific applications. First, an orthogonal time hopping sequence construction is proposed for... [23 Aug 2007]
Quality-of-Service Driven Power and Rate Adaptation for Multichannel Communications Over Wireless Links
White Paper This paper proposes a Quality-of-Service (QoS) driven power and rate adaptation scheme for multichannel communications systems over wireless links. Under the framework of convex optimization, the paper develops the optimal adaptation algorithms. [10 Aug 2007]
