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Now showing items 1-10 of 62
Lattice-structure based adaptive MMSE detectors for DS-CDMA systems.
(2001)
There has been significant interest in the research community on detectors for DS-CDMA
systems. The conventional detector, which detects users ' data bits, by using a filter matched to the
users' spreading codes, has two ...
Rain rate and rain drop size distribution models for line-of-sight millimetric systems in South Africa.
(2006)
Radio frequencies at millimeter wavelengths suffer greatly from rain attenuation. It is therefore essential to study rainfall characteristics for efficient and reliable design of radio networks at frequencies above 10GHz. ...
Hybrid token-CDMA MAC protocol for wireless networks.
(2009)
Ad hoc networks are commonly known to implement IEEE 802.11 standard as their medium
access control (MAC) protocol. It is well known that token passing MAC schemes
outperform carrier-sense-multiple-access (CSMA) schemes, ...
Cross-layer design for the transmission of multimedia traffic over fading channels.
(2009)
Providing guarantees in the Quality of Service (QoS) has become essential to the
transmission of multimedia traffic over wireless links with fading channels. However this
poses significant challenges due to the variable ...
Human motion reconstruction fom video sequences with MPEG-4 compliant animation parameters.
(2005)
The ability to track articulated human motion in video sequences is essential for applications ranging from biometrics, virtual reality, human-computer interfaces and surveillance. The work presented in this thesis focuses ...
The implementation of a CDMA system on a FPGA-based software radio.
(2000)
This dissertation exammes two of the rlsing technologies in the world of wireless, cellular
communications - CDMA and the software radio. This thesis covers many of the issues related
to these two emerging field s of ...
Analysis of the EDF family of schedulers.
(2009)
Modern telecommunications companies are moving away from conventional circuit-switched
architectures to more versatile packet-switched infrastructures. Traditional First-In-FirstOut
(FIFO) queues that are currently ...
A structure from motion solution to head pose recovery for model-based video coding.
(2005)
Current hybrid coders such as H.261/263/264 or MPEG-l/-2 cannot always offer high quality-to-compression ratios for video transfer over the (low-bandwidth) wireless channels typical of handheld devices (such as smartphones ...
Multiuser demodulation for DS-CDMA systems in fading channels.
(2000)
The problems of optimal as well as suboptimal detection for CDMA
transmissions over an additive white Gaussian noise (AWGN) channel, have
been the focus of study in the recent past. However, CDMA transmissions
are ...
MMSE equalizers and precoders in turbo equalization.
(2003)
Transmission of digital information through a wireless channel with resolvable multipaths or a bandwidth limited channel results in intersymbol interference (1SI) among a number of adjacent symbols. The design of an equalizer ...