Sfoglia per Soggetto "OFDM"
Items 1-6 di 6
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Adaptive channel assignment in SDMA-based wireless LANs with transceiver resource limitations
(2006)Beamforming with adaptive antenna arrays is the most promising means for increasing data rates of wireless systems, since it enables channel reuse by several users in a cell through space division multiple access (SDMA). ... -
Blind adaptive channel estimation in OFDM Systems
(2006)We consider the problem of blind channel estimation in zero padding OFDM systems, and propose blind adaptive algorithms in order to identify the impulse response of the multipath channel. In particular, we develop RLS and ... -
The impact of space division multiplexing on resource allocation: A unified treatment of TDMA,OFDMA and CDMA
(2008)Space division multiple access (SDMA) with an antenna array at the transmitter is a promising means for increasing system capacity and supporting rate-demanding services. However, the presence of an antenna array at the ... -
Orthogonal Frequency Division Multiplexing for 4G Mobile Communication Systems
(2010)Evolution in mobile communications demands development of ideal mechanisms in order to approach a new generation (4th Generation). Such mechanism is Orthogonal Frequency Division Multiplexing (OFDM), which is a multi-carrier ... -
Using a HAP Network to Transfer WiMAX OFDM Signals: Outage Probability Analysis
(2013)Transferring wireless broadband services across extremely far distances on Earth is usually implemented nowadays either by ground-based or satellite communications. Terrestrial networks require, however, heavy installation ... -
Video-aware relay selection in single-carrier and OFDM wireless systems
(2014)In this paper we consider packetized video transmission in cooperative relay-based wireless networks. We propose algorithms for optimized relay selection that take into account the content of each specific video packet. ...
