Previous
Wireless Networks Lure Hackers
News A new way to attack wireless networks underscores the lack of security for PC owners using the airwaves to connect their computers, said security experts speaking at the Black Hat Briefings conference.
[July 13, 2001, 9:18]
Improved TCP Performance In Wireless IP Networks Through Enhanced Opportunistic Scheduling Algorithms
White Papers Current and next-generation wireless networks rely on multi-user diversity and scheduling techniques (such as the commonly used Proportional Fair (PF) algorithm) to achieve greater system throughput and higher efficiencies for wireless data...
[August 13, 2007, 15:14]
An FDD Wideband CDMA MAC Protocol For Wireless Multimedia Networks
White Papers This paper is focused on the MAC protocol for FDD wideband CDMA wireless multimedia networks. Frequency Division Duplex (FDD) mode wideband CDMA does not have the option of multislot operation because the resource units only include codes in a frame.
[July 25, 2004, 3:16]
A Dynamic TCP-Aware Call Admission Control Scheme For Generic Next Generation Packet-Switched Wireless Networks
White Papers This is especially true when the TCP-type of elastic applications are running over such packet-switched wireless networks, as the elasticity of TCP applications has more tolerance toward the throughput/delay variation than non-elastic traffic does.
[October 31, 2007, 0:00]
Control Your Network: Comprehensive Management For Demanding Wireless Networks
White Papers However, until recently, administrators have had to either address each component individually, or use an "Off-the-rack" management solution - often not even designed for wireless networks. Motorola's suite of RF Management tools changes that with...
[May 21, 2008, 1:01]
Efficient Coverage Algorithms For Wireless Sensor Networks
White Papers One of the biggest disadvantages of large scale wireless sensor networks lies on the complexity of logistics involving selective replacement of sensors that have ran out of energy. Fortunately, efficient power management schemes provide some relief...
[August 25, 2007, 1:00]
TCP Vs. UDP Performance Evaluation For CBR Traffic On Wireless Multihop Networks
White Papers Multimedia applications over wireless networks become more and more demanding with respect to Quality of Service (QoS) and power consumption. As network behavior is a very important factor affecting the overall system performance, the protocol...
[December 6, 2007, 0:01]
Information Dissemination In Power-Constrained Wireless Networks
White Papers This paper characterizes the behavior of information dissemination in power-constrained wireless networks by defining two quantities, i.e.broadcast capacity and information diffusion rate and derived fundamental limits in both random extended and...
[October 11, 2008, 1:23]
StarDust: A Flexible Architecture For Passive Localization In Wireless Sensor Networks
White Papers The problem of localization in wireless sensor networks where nodes do not use ranging hardware remains a challenging problem, when considering the required location accuracy, energy expenditure and the duration of the localization phase.
[August 25, 2007, 1:00]
Constrained Least Squares Detector For OFDM/SDMA-Based Wireless Networks
White Papers The two major obstacles toward high-capacity indoor wireless networks are distortion due to the indoor channel and the limited bandwidth, which necessitates a high spectral efficiency. A combined orthogonal frequency division multiplexing (OFDM...
[October 26, 2004, 3:00]
A Request-TDMA Multiple-Access Scheme For Wireless Multimedia Networks
White Papers In current wireless communication networks, bandwidth is a scarce resource and has to be exploited as efficiently as possible. This paper describes a cellular multiple-access scheme based on TDMA for multimedia communication networks.
[July 20, 2004, 3:00]
Adaptive Sensing For Environment Monitoring Using Wireless Sensor Networks
White Papers This paper presents Adaptive Sensing, an energy-efficient topology configuration method for environment monitoring using densely deployed wireless sensor networks. Adaptive Sensing puts redundant nodes into passive mode as auxiliary nodes to be...
[August 25, 2007, 1:00]
Probability Grid: A Location Estimation Scheme For Wireless Sensor Networks
White Papers Location information is of paramount importance for Wireless Sensor Networks (WSN). The accuracy of collected data can significantly be affected by an imprecise positioning of the event of interest. Despite the importance of location information...
[August 25, 2007, 1:00]
Configuring And Managing A Large-Scale Monitoring Network: Solving Real World Challenges For Ultra-Lowpowered And Long-Range Wireless Mesh Networks
White Papers The purpose of this paper is to describe how mission-critical customer requirements by developing a wireless technology explicitly for devices in ultra-low-power (ULP) and long-range wireless mesh networks were addressed.
[September 29, 2005, 3:00]
Efficient And Density-Aware Routing For Wireless Sensor Networks
White Papers This paper presents a novel addressing and routing scheme for wireless sensor networks. Point-to-point routing is central to communication networks. The base of the approach on the observation that in real applications, sensors are usually deployed...
[August 25, 2007, 1:00]
A Taxonomy For Denial-of-Service Attacks In Wireless Sensor Networks
White Papers Wireless Sensor Networks (WSNs) are transitioning to real-world applications, where they face attacks already experienced by the Internet and wireless ad hoc networks. One such attack is that of Denial-Of-Service (DOS), which is believed will only...
[August 25, 2007, 1:00]
Performance Comparison Of Cellular And Multi-Hop Wireless Networks: A Quantitative Study
White Papers This paper studies the performance trade-offs between conventional cellular and multi-hop ad-hoc wireless networks. The paper discusses the trade-offs involved in the performance of the two network models, identify the specific reasons behind them...
[August 25, 2007, 1:00]
Models And Solutions For Radio Irregularity In Wireless Sensor Networks
White Papers This paper investigates the impact of radio irregularity on wireless sensor networks. Radio irregularity is a common phenomenon which arises from multiple factors, such as variance in RF sending power and different path losses depending on the...
[August 25, 2007, 1:00]
On Scheduling And Real-Time Capacity Of Hexagonal Wireless Sensor Networks
White Papers Since wireless ad-hoc networks use shared communication medium, accesses to the medium must be coordinated to avoid packet collisions. This paper presents a distributed transmission scheduling algorithm for hexagonal wireless ad-hoc networks with a...
[August 25, 2007, 1:00]
Energy-Efficient Bootstrapping For Wireless Sensor Networks
White Papers Wireless sensor networks are poised for increasingly wider uses in many military and civil applications. Such applications have stimulated research in a number of research areas related to energy conservation in such networks.
[October 5, 2008, 1:21]
