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GLOBECOM
2007
IEEE
13 years 11 months ago
Cognitive Medium Access: A Protocol for Enhancing Coexistence in WLAN Bands
— In this paper we propose Cognitive Medium Access (CMA), a protocol aimed at improving coexistence with a set of independently evolving WLAN bands. A time-slotted physical layer...
Stefan Geirhofer, Lang Tong, Brian M. Sadler
JSAC
2008
95views more  JSAC 2008»
13 years 3 months ago
Cognitive Medium Access: Constraining Interference Based on Experimental Models
In this paper we design a cognitive radio that can coexist with multiple parallel WLAN channels while abiding by an interference constraint. The interaction between both systems is...
Stefan Geirhofer, Lang Tong, Brian M. Sadler
VTC
2006
IEEE
101views Communications» more  VTC 2006»
13 years 10 months ago
Coexistence and Interworking of IEEE 802.16 and IEEE 802.11(e)
— The coexistence and interworking of IEEE 802.16 and IEEE 802.11 is an acute problem. The frame-based medium access of 802.16 requires rigorous protection against interference f...
Lars Berlemann, Christian Hoymann, Guido R. Hiertz...
JCM
2006
124views more  JCM 2006»
13 years 4 months ago
Policy Defined Spectrum sharing and medium Access for Cognitive Radios
Spectrum regulation will undergo elementary changes in the near future allowing a less restricted and more flexible access to radio spectrum. Intelligent radios, socalled cognitive...
Lars Berlemann, Stefan Mangold, Guido R. Hiertz, B...
ICC
2008
IEEE
112views Communications» more  ICC 2008»
13 years 11 months ago
Weighted Fair Uplink/Downlink Access Provisioning in IEEE 802.11e WLANs
— We present the unfairness problem between the uplink and the downlink flows in the IEEE 802.11e infrastructure Basic Service Set (BSS) when the default settings of the Enhance...
Feyza Keceli, Inanc Inan, Ender Ayanoglu