Theses and Dissertations
Now showing items 1-10 of 11
Simulation performance of multiple-input multiple-output systems employing single-carrier modulation and orthogonal frequency division multiplexing
(Monterey California. Naval Postgraduate School, 2004-12)
This thesis investigates the simulation performance of multiple-input multiple-output (MIMO) systems utilizing Alamoutibased space-time block coding (STBC) technique. The MIMO communication systems using STBC technique ...
Distributed beamforming in wireless sensor networks
(Monterey, California. Naval Postgraduate School, 2004-12)
a beam towards the UAV. A simulation model was developed and implemented in MATLAB programming language to study the effectiveness of beamforming using sensor clusters for establishing a communication link to the UAV. ...
A comparison of frequency offset estimation methods in Orthogonal Frequency Division Multiplexing (OFDM) systems
(Monterey California. Naval Postgraduate School, 2004-12)
OFDM is a modulation technique that achieves high data rates, increased bandwidth efficiency and robustness in multipath environments. However, OFDM has some disadvantages, such as sensitivity to channel fading, large peak ...
Sensor fusion for boost phase interception of ballistic missiles
(Monterey, California. Naval Postgraduate School, 2004-09)
In the boost phase interception of ballistic missiles, determining the exact position of a ballistic missile has a significant importance. Several sensors are used to detect and track the missile. These sensors differ from ...
Requirements and limitations of boost-phase Ballistic Missile intercept systems
(Monterey, California. Naval Postgraduate School, 2004-09)
The objective of this thesis is to investigate the requirements and limitations of boost phase ballistic missile intercept systems that contain an interceptor and its guidance sensors (both radar and infrared). A three- ...
A comparison of timing methods in orthogonal frequency division multiplexing (OFDM) systems
(Monterey California. Naval Postgraduate School, 2004-09)
Orthogonal frequency division multiplexing (OFDM) is being used by wireless local area network (WLAN) standards, such as IEEE 802.11a, and wireless metropolitan area network (MAN) standards, such as IEEE 802.16a. OFDM is ...
Kill vehicle effectiveness for boost phase interception of ballistic missiles
(Monterey, California. Naval Postgraduate School, 2004-06)
Boost phase interception of ballistic missiles is envisioned as the primary response of the layered defense architecture implemented in the ballistic missile defense system. A limited time frame in which to take action and ...
Radio channel modeling for mobile ad hoc wireless networks
(Monterey California. Naval Postgraduate School, 2004-06)
The radio channel places fundamental limitations on the performance of mobile ad hoc wireless networks. In the mobile radio environment, fading due to multipath delay spread impairs received signals. The purpose of this ...
Reed-Muller codes in error correction in wireless adhoc networks
(Monterey California. Naval Postgraduate School, 2004-03)
The IEEE 802.11a standard uses a coded orthogonal frequency division multi-plexing (COFDM) scheme in the 5-GHz band to support data rates up to 54 Mbps. The COFDM was chosen because of its robustness to multipath fading ...
Analysis of the effects of phase noise and frequency offset in orthogonal frequency division multiplexing (OFDM) systems
(Monterey California. Naval Postgraduate School, 2004-03)
Orthogonal frequency division multiplexing (OFDM) is being successfully used in numerous applications. It was chosen for IEEE 802.11a wireless local area network (WLAN) standard, and it is being considered for the ...
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Tummala, Murali (11)
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2004 (11)
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Masters (11)