Sciweavers

1572 search results - page 4 / 315
» Modeling IEEE 802.11 DCF System Dynamics
Sort
View
GLOBECOM
2007
IEEE
14 years 18 days ago
AMC-Aware QoS Proposal for OFDMA-Based IEEE802.16 WiMAX Systems
— OFDMA-based IEEE802.16 implements Adaptive Modulation and Coding (AMC) which results in a different bit rate for each user depending on its position in the cell as well as the ...
Chadi Tarhini, Tijani Chahed
LANC
2009
ACM
178views Education» more  LANC 2009»
13 years 11 months ago
A connection level model for IEEE 802.11 cells
We study a wireless network under the 802.11 random access protocol, supporting multiple physical layer rates. Based on models for the effective packet rates achieved at the MAC ...
Andrés Ferragut, Fernando Paganini
WIOPT
2006
IEEE
14 years 8 days ago
Analytical modeling of ad hoc networks that utilize space-time coding
— This paper presents the first analytical model for ad hoc networks equipped with multiple-input multiple-output (MIMO) radios using space-time coding (STC) that considers the ...
Marcelo M. Carvalho, J. J. Garcia-Luna-Aceves
MOBIHOC
2002
ACM
14 years 5 months ago
Performance evaluation of a fair backoff algorithm for IEEE 802.11 DFWMAC
Due to hidden terminals and a dynamic topology, contention among stations in an ad-hoc network is not homogeneous. Some stations are at a disadvantage in opportunity of access to ...
Zuyuan Fang, Brahim Bensaou, Yu Wang
ICASSP
2010
IEEE
13 years 4 months ago
A comparison of approaches for modeling prosodic features in speaker recognition
Prosodic information has been successfully used for speaker recognition for more than a decade. The best-performing prosodic system to date has been one based on features extracte...
Luciana Ferrer, Nicolas Scheffer, Elizabeth Shribe...