We present a persistent diagnostic technique for unstable defects, such as open defects or
delay defects. A new" segment model" diagnosis for the completely open defects is …

Algorithms that predict the wireless channel for up to a few wavelengths cannot be
adequately tested with stationary models. Ray-tracing or FDTD methods do not provide …

In this paper, we prove that the problem of maximizing data throughput by adaptive
modulation and power control while meeting packet error requirements is NP-complete. A …

The need for spectrally efficient transmission on mobile and wireless channels is prevalent.
A promising scheme for such transmission is adaptive coded modulation. In this thesis …

A promising tool for increasing transmission rate while keeping a predictable failure rate on
mobile channels is adaptive coded modulation (ACM). An important restriction in systems …

With the introduction of the IS-95 CDMA standard [5], commercial wireless systems with
spread spectrum technology have become common. The third generation (3G) wireless …

The future telecommunication systems are expected to provide the same type of services as
fixed networks does today, which demands a reliable high data rate in order to handle all …

Adaptive modulation exhibits appreciable sensitivity to the channel estimation process. Its
performance, specially the BER, can be seriously affected by imperfect channel estimation …

In future wireless multimedia communications, adaptive modulation and transmit diversity
are two of the most important techniques. Adaptive modulation can efficiently use the …