80 search results - page 3 / 16 » On using transmission overhead efficiently for channel estim... |
ISCAS
2003
IEEE
13 years 10 months ago
2003
IEEE
In this paper, a new channel estimation method for OFDM WLAN systems is proposed. This proposal mainly consists of smoothing filtering and decision-directed tracking loop schemes,...
VTC
2007
IEEE
13 years 11 months ago
2007
IEEE
Abstract - A coherent detection of OFDM signals (Orthogonal Frequency Division Multiplexing) allows good performances in severely time-dispersive channels. However, coherent receiv...
JSAC
2008
13 years 5 months ago
2008
We consider two techniques of in-band frequency domain multiplexed (FDM) pilots using interleaved frequency domain multiple access (IFDMA) signal with a Chu sequence for DFT-precod...
MONET
2008
13 years 4 months ago
2008
This paper presents the performance comparison of efficiency. OFDM is well known as a spectrally efficient Cognitive Radio TDCS and OFDM based for MIMO system modulation mode which...
INFOCOM
2008
IEEE
13 years 11 months ago
2008
IEEE
— We study the end-to-end resource allocation in an OFDM based multi-hop network consisting of a one-dimensional chain of nodes including a source, a destination, and multiple re...