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Providing Group Tour Guide by RFIDs and Wireless Sensor Networks
White Papers This paper proposes a new application framework for group tour guiding services based on RFIDs and wireless sensor networks. The paper considers a sensing field mixed with multiple independent tourist groups, each with a leader and several members.
[December 2, 2009, 23:00]
Topology Discovery in Heterogeneous IP Networks
White Papers Given the dynamic nature of today's IP networks, keeping track of topology information manually is a daunting (if not impossible) task. This paper presents novel algorithms for discovering physical topology in heterogeneous (i.e.multi-vendor) IP...
[December 7, 2006, 0:00]
Practical Rate-Based Congestion Control for Wireless Mesh Networks
White Papers This paper introduces an adaptive pacing scheme to overcome the drawbacks of TCP in wireless mesh networks with Internet connectivity. The pacing scheme is implemented at the wireless TCP sender as well as at the mesh gateway, and reacts according...
[December 2, 2009, 23:00]
Cross-Layer Adaptation of MPEG4 Video Streaming Over Wireless Networks Using Unequal Error Protection and MC-CDMA
White Papers A novel methodology for the efficient multiplexing and streaming of MPEG4 video over wireless networks is presented and discussed. The proposed cross-layer adaptation jointly exploits Variable-BitRate (VBR) Multi-Carrier Code-Division Multiplexing...
[February 8, 2006, 0:01]
Link-Layer Fragmentation and Retransmission Impact on TCP Performance in 802.11-Based Networks
White Papers The objective of this paper is to examine the behavior of TCP in 802.11-based networks. The focus of this work is mainly on the effect of the fragmentation and frames retransmission handled at the MAC layer on the TCP end-to-end performance.
[December 20, 2007, 0:01]
Interference Aware Routing in Multi-Radio Wireless Mesh Networks
White Papers This paper addresses the problem of interference aware routing in multi-radio infrastructure mesh networks wherein each mesh node is equipped with multiple radio interfaces and a subset of nodes serve as Internet gateways.
[December 7, 2006, 0:00]
Identity Deployment and Management in Wireless Mesh Networks
White Papers The extension of the radio range of access points using wireless relays is usually called wireless mesh networks. Mesh networks may be combined with mobile ad hoc routing and have its radio range extended even more using mobile client devices as...
[December 2, 2009, 23:00]
Experimental Comparison of Bandwidth Estimation Tools for Wireless Mesh Networks
White Papers Several probe-based tools have been proposed to measure available bandwidth in wired networks. However, the performance of these tools in the realm of wireless networks has not been evaluated extensively.
[December 2, 2009, 23:00]
AMP NETCONNECT: Cabling Systems for Data Centers & Storage Area Networks (SANs)
White Papers Now that expansive optical networks are being deployed and the cost of bandwidth is dropping on even global transmissions, off-site data storage is a viable business option. Storage Area Networks (SANs) and Storage Service Providers (SSPs) are...
[April 11, 2008, 1:02]
Data-Centric Routing Using Bloom Filters in Wireless Sensor Networks
White Papers This paper presents a paradigm for reducing communication costs in wireless sensor networks. The first component is the Distributed Asynchronous Clustering protocol (DAC), which self-organises the network into an infrastructure that supports in...
[December 2, 2009, 23:00]
Spectrum Management in Coordinated Dynamic Spectrum Access Based Cellular Networks
White Papers This paper focuses on spectrum management in next generation cellular networks that employ Coordinated Dynamic Spectrum Access (DSA). Based on these concepts, the authors investigate practically realizable candidate algorithms for spectrum...
[December 7, 2006, 0:00]
A Node's Number of Neighbors in Wireless Mobile Ad Hoc Networks: A Statistical View
White Papers In the last decade, since the advent of advanced wireless technology, wireless mobile ad hoc networks have grown in both size and complexity, and their applications are also expanding at a great rate due to their many advantages, principally...
[November 26, 2009, 23:00]
Constructing Wireless Sensor Networks Via Effective Topology Maintenance and Querying
White Papers The ability of properly covering the terrain under investigation and collecting measurements from redundantly sensed portions of the terrain are two important objectives for monitoring applications using wireless sensor networks.
[August 13, 2007, 8:09]
Computing Aggregates for Monitoring Wireless Sensor Networks
White Papers Wireless sensor networks involve very large numbers of small, low-power, wireless devices. Given their unattended nature, and their potential applications in harsh environments, the paper needs a monitoring infrastructure that indicates system...
[September 11, 2008, 1:01]
An Evaluation of the Performance of IEEE 802.11a and 802.11g Wireless Local Area Networks in a Corporate Office Environment
White Papers In recent years there has been considerable interest in the development of standards for Wireless Local Area Networks. In particular, IEEE's 802.11 standard has now been extended to a family of WLAN standards.a and 802.11g both employ Coded...
[February 10, 2006, 0:01]
Optimizing Lifetime for Continuous Data Aggregation With Precision Guarantees in Wireless Sensor Networks
White Papers This paper exploits the tradeoff between data quality and energy consumption to extend the lifetime of wireless sensor networks. To obtain an aggregate form of sensor data with precision guarantees, the precision constraint is partitioned and...
[December 2, 2009, 23:00]
Efficient Implementation for Videoconferencing in 3G Wireless Networks
White Papers This paper introduces the prototype of design and implementation of a VideoConferencing (VC) system and protocol for 3G networks based on the 3G-324M protocol stack. Efficient multimedia processing and intelligent MCUs (Multipoint Control Unit) for...
[February 10, 2006, 0:01]
Interference-Aware Topology Control for Wireless Sensor Networks
White Papers Topology control has been well studied in wireless ad hoc networks. However, only a few topology control methods take into account the low interference as a goal of the methods. Some researchers tried to indirectly reduce the interference by...
[April 23, 2009, 1:24]
The Wealth of Networks review
Reviews Benkler underlines this point with the following gesture: The Wealth of Networks was released, simultaneously with the print publication, onto the internet as a PDF under a Creative Commons licence. Radio followed the same pattern, beginning as an...
[April 24, 2007, 15:10]
Mobile operators merge their networks
News Two of the UK's mobile operators are to merge a large part of their 3G phone networks. Vodafone and Orange will combine their radio access networks (RANs), which mainly comprise mobile base stations and transmission networks.
[February 8, 2007, 16:25]
