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GLOBECOM
2007
IEEE
8 years 5 months ago
Path Planning for Network Performance
— Path planning and network design are often treated by architects of mobile communication networks as separate problems. In fact, most mobile ad hoc network (MANET) designs do n...
Alex Fridman, Steven Weber, Charles Graff, Moshe K...
GLOBECOM
2007
IEEE
8 years 5 months ago
Cooperative Beamforming for Wireless Ad Hoc Networks
—Via collaborative beamforming, nodes in a wireless network are able to transmit a common message over long distances in an energy efficient fashion. However, the process of mak...
Lun Dong, Athina P. Petropulu, H. Vincent Poor
GLOBECOM
2007
IEEE
8 years 5 months ago
Connectivity, Energy and Mobility Driven Clustering Algorithm for Mobile Ad Hoc Networks
—In the context of mobile ad hoc networks (MANETs) routing, we propose a clustering algorithm called Connectivity, Energy and Mobility driven Clustering Algorithm (CEMCA). The ai...
Fatiha Djemili Tolba, Damien Magoni, Pascal Lorenz
GLOBECOM
2007
IEEE
8 years 5 months ago
Multi-Class QoS in 802.11 Networks Using Gentle Decrease of Multiple Contention Windows
—IEEE 802.11 Distributed Coordination Function (DCF) uses a binary exponential backoff algorithm to arbitrate simultaneous channel access by multiple stations. When a station sen...
Bushra Anjum, Zartash Afzal Uzmi
GLOBECOM
2007
IEEE
8 years 5 months ago
A Gray-Code Type Bit Assignment Algorithm for Unitary Space-Time Constellations
Abstract— Many techniques for constructing unitary spacetime constellations have been proposed. To minimize bit-error rate (BER) in a wireless communication system, constellation...
Adam Panagos, Kurt L. Kosbar
GLOBECOM
2007
IEEE
8 years 5 months ago
Doppler Spread Estimation for Broadband Wireless OFDM Systems
Abstract— In this paper, we present a new Doppler spread estimation algorithm for broadband wireless orthogonal frequency division multiplexing (OFDM) systems with time-varying a...
Jun Tao, Jingxian Wu, Chengshan Xiao
GLOBECOM
2007
IEEE
8 years 5 months ago
FFT-DMAC: A Tone Based MAC Protocol with Directional Antennas
—This paper presents the FFT (flip-flop tone) DMAC protocol, a tone based MAC protocol using directional antennas to solve the deafness problem, hidden terminal and exposed termi...
Ying Li, Minglu Li, Wei Shu, Min-You Wu
GLOBECOM
2007
IEEE
8 years 5 months ago
On Static Code Construction for Alternating Multicast and Simultaneous Multicasts
— In this paper, we introduce a network multicast problem called the alternating multicast problem. In this problem, there is more than one multicast on the network, but only one...
Chi Kin Ngai, Shenghao Yang, Raymond W. Yeung
GLOBECOM
2007
IEEE
8 years 7 months ago
Adaptive Radio Resource Allocation in Hierarchical QoS Scheduling for IEEE 802.16 Systems
— Future mobile communication systems such as IEEE 802.16 are expected to deliver a variety of multimedia services with diverse QoS requirements. To guarantee the QoS provision, ...
Hua Wang, Lars Dittmann
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