Extending the range of the 802.11G WLAN through improved synchronization techniques
Kragh, Frank E.
Robertson, R. Clark
MetadataShow full item record
Orthogonal Frequency Division Multiplexing (OFDM) allows for a spectrally efficient means of obtaining high data rates while simultaneously combating the effects of fading. The multi-carrier spectrum of OFDM mandates that the receiver accomplish a number of synchronization tasks to successfully demodulate the OFDM signal, including the critical requirement to synchronize the carrier frequency. Additional synchronization tasks include frame synchronization (packet detection), synchronization of the carrier phase, and symbol timing. Improved receiver synchronization algorithms may hold the prospect of superior performance; specifically allowing successful demodulation by the receiver at an extended range. This thesis discusses several promising synchronization algorithms. Furthermore, a performance analysis of these algorithms is conducted at low signal to noise ratio (SNR) in an AWGN channel using MATLAB.
Showing items related by title, author, creator and subject.
Lowham, Keith D. (Monterey, California. Naval Postgraduate School, 2004-03);Synchronization of orthogonal frequency-division multiplexed (OFDM) signals is significantly more difficult than synchronization of a single-carrier system. The recently approved IEEE Standard 802.11g specifies a packet-based ...
An eight-channel sampled-data acoustic telemetry system for deep-water biomedical and environmental applications Reading, Leslie James (Monterey, California; Naval Postgraduate School, 1970-06);A general-purpose acoustic telemetry system is presented. The carrier of one hundred forty-five kilohertz is frequency shift keyed at a average rate of once a millisecond, the subcarrier being pulsed width modulated by ...
A hybrid time synchronization algorithm based on broadcast sequencing for wireless sensor networks Park, Sung C. (Monterey, California: Naval Postgraduate School, 2014-09);In recent years, time synchronization has emerged as an essential research topic for wireless sensor networks. Numerous wireless network applications require a common reference time for collaborative data fusion and ...