Joint Preprocessor-Based Detectors for One-Way and Two-Way Cooperative Communication Networks

الموضوعات

علوم تطبيقية وتكنولوجية

الملخص

Efficient receiver designs for cooperative communication networks are becoming increasingly important. In previous work, cooperative networks communicated with the use of L relays. As the receiver is constrained, channel shortening and reduced-rank techniques were employed to design the preprocessing matrix that reduces the length of the received vector from L to U. In the first part of the work, a receiver structure is proposed which combines our proposed threshold selection criteria with the joint iterative optimization (JIO) algorithm that is based on the mean square error (MSE). Our receiver assists in determining the optimal U. Furthermore, this receiver provides the freedom to choose U for each frame depending on the tolerable difference allowed for MSE. Our study and simulation results show that by choosing an appropriate threshold, it is possible to gain in terms of complexity savings while having no or minimal effect on the BER performance of the system. Furthermore, the effect of channel estimation on the performance of the cooperative system is investigated. In the second part of the work, a joint preprocessor-based detector for cooperative communication networks is proposed for one-way and two-way relaying. This joint preprocessor-based detector operates on the principles of minimizing the symbol error rate (SER) instead of minimizing MSE. For a realistic assessment, pilot symbols are used to estimate the channel. From our simulations, it can be observed that our proposed detector achieves the same SER performance as that of the maximum likelihood (ML) detector with all participating relays. Additionally, our detector outperforms selection combining (SC), channel shortening (CS) scheme and reduced-rank techniques when using the same U. Finally, our proposed scheme has the lowest computational complexity.

روابط وملفات

التعريف والنوع

رقم الوثيقة

ee19c725-d343-4245-bf77-06b574cdd4db

رقم العقد

0

نوع الوسائط

Crawler

نوع المحتوى

الرسائل العلمية

صيغة المصدر

رسائل ماجيستير

نوع الملف

pdf text

أسماء الملفات

1700380_1.pdf

بيانات النشر

ألقاب المؤلفين

[{"name_ar":"Abdulrahman Issam Taher Abuzaid","title_ar":"اعداد","title_en":"Preparation"},{"name_ar":"Mohamed-Slim Alouini","title_ar":"اشراف","title_en":"Supervision"}]

اللغة

English

المصدر والدورية

اسم المصدر

Joint Preprocessor-Based Detectors for One-Way and Two-Way Cooperative Communication Networks

المحتوى والصفحات

عدد الصفحات

0

كلمات الباحثين

Adaptive Filtering , Cooperative communications , Minimum Square Error , Minimum Symbol Error Rate , Rank Reduction

إشراف وإعداد

الإشراف

Mohamed-Slim Alouini

الإعداد

Abdulrahman Issam Taher Abuzaid

الاقتباسات الببليوغرافية