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» The Capacity of Heterogeneous Wireless Networks
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IWCMC
2006
ACM
14 years 4 months ago
Multi-hop CDMA cellular networks with power control
The concept of multi-hop CDMA cellular networks has been around for sometime now. It is a widely accepted assumption that using multi-hopping in cellular networks will increase th...
Ayman Radwan, Hossam S. Hassanein
GLOBECOM
2010
IEEE
13 years 8 months ago
A Comparison of Modulations for Energy Optimization in Wireless Sensor Network Links
We study the energy consumption of individual links in wireless sensor networks (WSN). Three widely used digital modulation schemes, i.e. MQAM, MPSK, and MFSK, are analyzed and com...
Felipe M. Costa, Hideki Ochiai
WCNC
2008
IEEE
14 years 5 months ago
Genetic Algorithm Aided Design of Near-Capacity Irregular Variable Length Codes
— In this paper we demonstrate that our ability to match the EXtrinsic Information Transfer (EXIT) function of an Irregular Variable Length Code (IrVLC) to that of a seriallyconc...
Robert G. Maunder, Lajos Hanzo
WCNC
2008
IEEE
14 years 5 months ago
A Closed-Form Approximation for Capacity of Multiuser MIMO Broadcast Systems: A Virtual User Approach
— Besides delivering high data rates in a point-to-point scenario, multi-input multi-output (MIMO) antenna techniques can broadcast personalized data to multiple users in the poi...
Li-Chun Wang, Chu-Jung Yeh, Chi-Fang Li
DIALM
2008
ACM
139views Algorithms» more  DIALM 2008»
14 years 17 days ago
Approximating maximum integral flows in wireless sensor networks via weighted-degree constrained k-flows
We consider the Maximum Integral Flow with Energy Constraints problem: given a directed graph G = (V, E) with edge-weights {w(e) : e E} and node battery capacities {b(v) : v V }...
Zeev Nutov