01/10/2023

إبراهيم بن محمد بن علي السلمي

إبراهيم بن محمد بن علي السلمي
دكتوراه
هندسة
Oxford University

مجال
التميز

تميز دراسي و بحثي 

 

 

البحوث المنشورة

 

البحث (1):

 

عنوان البحث:

Multiresolution
PPM for Broadcasting over Asymmetric Photon Counting Channels

رابط البحث:

Link

تاريخ النشر:

01/12/2011

موجز عن البحث:

In this letter, we address the problem of
broadcasting to receivers with different bandwidths using pulse-position
modulation (PPM). A new multiresolution PPM scheme is developed for such a
scenario. We show how to construct the scheme for various settings and
analyse its performance in the solar-blind region of the ultraviolet (UV) spectrum,
where photon counting is attractive. Our key result is that the proposed
scheme can increase information rate compared to time-sharing (TS) by
superimposing information.

 

 

البحث (2):

 

عنوان البحث:

Broadcasting over Photon-Counting Channels via
Multiresolution PPM: Implementation and Experimental Results

رابط البحث:

Link

تاريخ النشر:

01/12/2012

موجز عن البحث:

Theoretical analysis of multiresolution
pulse-position modulation (M/N-PPM) predicts its ability to improve
information rate; so far, however, its performance in practice is unknown. In
this letter, we report results of a proof-of-concept experiment, in which an
M/N-PPM scheme is used for broadcasting over photon-counting channels. We
show that M/N-PPM has a potential to improve information rate by
demonstrating its ability to superimpose information. We provide results of
data rates, bit-error rates (BERs), and discuss some channel impairments that
affect link performance.

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