This paper presents a practical low-density parity-check (LDPC) coded OFDM system
designed for the underwater acoustic channel with its attendant sparse multipath channel …

BACKGROUND In order to help reduce latency between communications with several
transmitting stations. Some multicarrier commu nication stations may desire to receive …

A joint carrier frequency synchronization and channel estimation scheme is proposed for
orthogonal frequency-division multiplexing (OFDM) system. In the proposed scheme, carrier …

US7426199B2 - Wireless communication device and method for reducing carrier frequency
offsets over a simultaneous multi-user uplink in a multicarrier communication network …

In this paper, we propose a novel carrier frequency offset (CFO) tracking algorithm for
orthogonal frequency division multiplexing (OFDM) systems by exploiting scattered pilot …

The existence of high carrier frequency offset (CFO) and fading channels degrades the
performance of communication systems in high mobility environments significantly. To …

This paper provides an approximate closed form solution to the problem of data-aided joint
maximum likelihood estimation of the carrier frequency offset and of the channel impulse …

Methods and systems for providing feedback for beamforming and power control are
provided. In some embodiments, the methods comprise: calculating a threshold associated …

US7693111B2 - Wireless communication device and method for reducing carrier frequency
offsets over a simultaneous multi-user uplink in a multicarrier communication network …

US7466964B2 - Wireless communication device and method for coordinated channel access
with reduced latency in a wireless network - Google Patents US7466964B2 - Wireless …