Sciweavers

101 search results - page 11 / 21
» twc 2010
Sort
View
TWC
2010
14 years 4 months ago
Multiple antenna spectrum sensing in cognitive radios
In this paper, we consider the problem of spectrum sensing by using multiple antenna in cognitive radios when the noise and the primary user signal are assumed as independent compl...
Abbas Taherpour, Masoumeh Nasiri-Kenari, Saeed Gaz...
TWC
2010
14 years 4 months ago
Performance of asynchronous two-relay two-hop wireless cooperative networks
In wireless cooperative networks, the asynchronism between the relays can be a source of diversity which is similar in its essence to the multipath diversity of frequency selectiv...
Michel Nahas, Ahmed Saadani, Walid Hachem
TWC
2010
14 years 4 months ago
Link Energy Minimization in IR-UWB Based Wireless Networks
Abstract--Impulse Radio Ultra WideBand (IR-UWB) communication has proven to be an important technique for supporting high-rate, short-range, and low-power communication. In this pa...
Tianqi Wang, Wendi B. Heinzelman, Alireza Seyedi
TWC
2010
14 years 4 months ago
Bandwidth exchange: an energy conserving incentive mechanism for cooperation
Cooperative forwarding in wireless networks has shown to yield rate and diversity gains, but it incurs energy costs borne by the cooperating nodes. In this paper we consider an inc...
Dan Zhang, Ryoichi Shinkuma, Narayan B. Mandayam
TWC
2010
14 years 4 months ago
Frame detection and timing acquisition for OFDM transmissions with unknown interference
Abstract--Frame detection and timing acquisition are challenging tasks in orthogonal frequency-division multiplexing systems plagued by narrowband interference (NBI). Most existing...
Luca Sanguinetti, Michele Morelli, H. Vincent Poor