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ICNP
2002
IEEE
15 years 11 months ago
Hybrid Channel Access Scheduling in Ad Hoc Networks
We present the hybrid activation multiple access (HAMA) protocol for ad hoc networks. Unlike previous channel access scheduling protocols that activate either nodes or links only,...
Lichun Bao, J. J. Garcia-Luna-Aceves
ACMDIS
2000
ACM
15 years 11 months ago
On the Contributions of Different Empirical Data in Usability Testing
Many sources of empirical data can be used to evaluate an interface (e.g., time to learn, time to perform benchmark tasks, number of errors on benchmark tasks, answers on question...
Maria Ebling, Bonnie E. John
SETA
2010
Springer
173views Mathematics» more  SETA 2010»
15 years 5 months ago
User-Irrepressible Sequences
Protocol sequences are binary and periodic sequences used in multiple-access scheme for collision channel without feedback. Each user reads out the bits from the assigned protocol ...
Kenneth W. Shum, Yijin Zhang, Wing Shing Wong
MASS
2010
143views Communications» more  MASS 2010»
15 years 4 months ago
Know your neighborhood: A strategy for energy-efficient communication
Wireless sensor networks typically conserve energy by following a periodic wakeup-sleep schedule: nodes minimize idle time and spend most of their time in a low power sleep state. ...
Farhana Ashraf, Riccardo Crepaldi, Robin Kravets
TSP
2011
210views more  TSP 2011»
15 years 1 months ago
Physical Layer Network Coding and Precoding for the Two-Way Relay Channel in Cellular Systems
In this paper, we study the application of physical layer network coding to the joint design of uplink and downlink transmissions, where the base station and the relay have multip...
Zhiguo Ding, Ioannis Krikidis, John S. Thompson, K...