70 search results - page 4 / 14 » Energy-aware adaptive OFDM systems |
ICC
2007
IEEE
14 years 1 months ago
2007
IEEE
Abstract—Synchronization is an important issue in orthogonal frequency-division multiplexing (OFDM) systems including symbol timing and carrier frequency offset (CFO) estimation....
MOBILWARE
2010
ACM
13 years 5 months ago
2010
ACM
An OFDM system is very sensitive to orthogonality relation. For a mobile wireless system, it is impossible to avoid Doppler-induced inter carrier interference (ICI). Moreover, whil...
GLOBECOM
2006
IEEE
14 years 1 months ago
2006
IEEE
—In this paper, a user-aided adaptive TDMA (UAAT) algorithm is developed for real-time services to improve the system efficiency of OFDM based cellular networks. In the UAAT sche...
GLOBECOM
2006
IEEE
14 years 1 months ago
2006
IEEE
Abstract— We propose a low-complexity adaptive highresolution channel prediction algorithm for pilot symbol assisted orthogonal frequency division multiplexing (OFDM) systems. Th...
ISCAS
2003
IEEE
14 years 22 days 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,...