Browsing Theses by Subject "OFDM"
Now showing items 1-10 of 10
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Adaptive OFDM Cooperative Systems
(University of Waterloo, 2010-12-08)Cooperative communication is a promising technique for wireless communication systems where wireless nodes cooperate together in transmitting their information. Such communication transmission technique, which realizes the ... -
Cooperative Communication over Underwater Acoustic Channels
(University of Waterloo, 2013-06-18)As diverse and data-heavy underwater applications emerge, demanding requirements are further imposed on underwater wireless communication systems. Future underwater wireless communication networks might consist of both ... -
Cooperative Techniques for Next Generation HF Communication Systems
(University of Waterloo, 2013-05-23)The high frequency (HF) band lies within 2-30 MHz of the electromagnetic spectrum. For decades, the HF band has been recognized as the primary means of long-range wireless communications. When satellite communication first ... -
The End-to-End BER Analysis of Two Simulated OFDM-RoF Systems
(University of Waterloo, 2016-01-06)With the rapid grown of informational and visual services, larger capacity and higher-speed transmissions are demanded in today's cellular network, which makes the current wireless networks eventually fail to deal with the ... -
Investigation of Channel Reciprocity for OFDM TDD Systems
(University of Waterloo, 2009-10-02)This dissertation investigates the assumption of channel reciprocity in orthogonal frequency division multiplexing (OFDM) systems using time-division duplex (TDD) access. Within TDD systems uplink and downlink transmission ... -
On Cyclic Delay Diversity OFDM Based Channels
(University of Waterloo, 2012-10-22)Orthogonal Frequency Division Multiplexing, so called OFDM, has found a prominent place in various wireless systems and networks as a method of encoding data over multiple carrier frequencies. OFDM-based communication ... -
Physical Layer Techniques for OFDM-Based Cognitive Radios
(University of Waterloo, 2014-02-18)Cognitive radio has recently been proposed as a promising approach for efficient utilization of radio spectrum. However, there are several challenges to be addressed across all layers of a cognitive radio system design, ... -
Reduction of Implementation Complexity in MIMO-OFDM Decoding for V-BLAST Architecture
(University of Waterloo, 2010-08-26)This dissertation documents alternative designs of the Zero Forcing decoding algorithm with Successive Interference Cancellation (ZF-SIC) for use in Vertical Bell Laboratories Layered Space Time Architecture (V-BLAST) ... -
Simplified Channel Estimation Techniques for OFDM Systems with Realistic Indoor Fading Channels
(University of Waterloo, 2009-05-22)This dissertation deals with the channel estimation techniques for orthogonal frequency division multiplexing (OFDM) systems such as in IEEE 802.11. Although there has been a great amount of research in this area, ... -
Viterbi Decoding for OFDM systems operating in narrow band interference
(University of Waterloo, 2009-10-05)Our main objective in this thesis is to study the effect of narrow band interference on OFDM systems operating in the 2.4 Ghz ISM band and identify ways to improve upon existing techniques to deal with them. We first ...