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VTC
2007
IEEE
108views Communications» more  VTC 2007»
16 years 16 days ago
Cooperative Spatial Reuse with Transmit Beamforming
—We present a cooperative spatial reuse (CSR) scheme as a cooperative extension of the current TDMAbased MAC to enable spatial reuse in multi-rate wireless networks. We model spa...
Chenguang Lu, Frank H. P. Fitzek, Patrick C. F. Eg...
VTC
2007
IEEE
129views Communications» more  VTC 2007»
16 years 16 days ago
Cooperative Transmission: A Reality Check Using Experimental Data
— Wireless transmission based on cooperation promises to bring performance improvements in multi–node networks. Several cooperative schemes have appeared in the literature, and...
Persefoni Kyritsi, Petar Popovski, Patrick C. F. E...
VTC
2007
IEEE
200views Communications» more  VTC 2007»
16 years 16 days ago
General Analysis of Uplink Group-Orthogonal MC-CDMA systems
Abstract—Group-orthogonal multicarrier code-division multiple access (GO-MC-CDMA) has been proposed as a multiplexing technique for the uplink segment of wireless systems. The di...
Guillem Femenias, Felip Riera-Palou, Jaume Ramis
VTC
2007
IEEE
16 years 16 days ago
Power Optimization of IDMA Systems with Different Target BER Constraints
— Interleave Division Multiple Access (IDMA) is a promising air interface for future wireless networks. Optimization of access schemes regarding cross user aspects is also a topi...
Petra Weitkemper, Karl-Dirk Kammeyer
WIMOB
2007
IEEE
16 years 16 days ago
Performance Analysis of Ranging Process in IEEE 802.16e OFDMA Systems
In this paper, ranging process in IEEE 802.16e OFDMA systems is analyzed and performance is evaluated. Ranging process provides initial network entry, uplink synchronization, and ...
Doo Hwan Lee, Hiroyuki Morikawa
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