ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
Abstract—In this paper we study optimal transmission strategies in wireless ad-hoc networks using directional antennas. Each node is capable of adjusting its transmission rate as...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
Abstract— Space Division Multiple Access (SDMA) is a promising solution to improve the spectral efficiency of future mobile radio systems. However, finding the group of MSs tha...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
— In this paper, the frequency domain (FD) SAGE (Space-Alternating Generalized Expectation-maximization) algorithm has been extended to the MIMO case in order to determine the an...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
— We propose the novel concept of cooperation for deafness prevention in directional antenna ad hoc networks, along with a low-complexity multiuser detector specialised for these...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
Abstract— Zero-padded OFDM (ZP-OFDM) systems have recently been adopted in certain wireless systems, such as the multiband-OFDM based WiMedia standard, instead of the more common...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
—Cyber attack behavior analysis can be roughly classified as “network centric” and “attacker centric” approaches. Compared with traditional “network centric” approach...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
— Nonuniform sources can be found in real world applications as uncompressed speech, text and medical images. In this paper we compare the performance of three different methods ...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
— Although the capacity of multiple-input multiple output (MIMO) broadcast channels (BCs) can be achieved by dirty-paper coding (DPC), it is difficult to apply the results direct...
ICC
2007
IEEE
14 years 3 months ago
2007
IEEE
Abstract— An optimization algorithm for finding user allocation, bit and power loading in the downlink of MIMO-OFDM systems is proposed. The algorithm represents a generalizatio...