An Angular Soft Forwarding Scheme for Wireless Cooperative Relay Networks

Dushantha Nalin K. Jayakody, Marwa Qaraqe, Rui Dinis

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

Аннотация

In this paper, we propose a new methodology for soft forwarding which is based on a novel technique known as soft angular modulation (SAM). This is effective even under poor source-relay link conditions. The new treatment presented here allows a more flexible system design. This makes soft forwarding, which is not practical with current infrastructure, a feasible approach. In this work, we convert soft information from the soft domain into the angular domain. We then forward unity amplitude symbols using wireless fading channels. Due to the analogue nature of the probabilistic content (or soft information), the soft information relaying (SIR) scheme is not treated as a practically feasible relay protocol. We offer a remedy to this by forwarding unity amplitude symbols from the relay. Using the expression of soft noise variance, we deduct an approximate log likelihood ratio (LLR) expression for a parallel relay network employing SAM scheme. It is shown that the derived BER of SAM and numerical BER are closely aligned. The proposed scheme yields improved BER performance as compared to other conventional schemes.

Язык оригиналаАнглийский
Название основной публикации2018 IEEE 87th Vehicular Technology Conference, VTC Spring 2018 - Proceedings
ИздательInstitute of Electrical and Electronics Engineers Inc.
Страницы1-6
Число страниц6
Том2018-June
ISBN (электронное издание)9781538663554
DOI
СостояниеОпубликовано - 20 июл 2018
Событие87th IEEE Vehicular Technology Conference, VTC Spring 2018 - Porto, Португалия
Продолжительность: 3 июн 20186 июн 2018

Конференция

Конференция87th IEEE Vehicular Technology Conference, VTC Spring 2018
СтранаПортугалия
ГородPorto
Период3.6.186.6.18

ASJC Scopus subject areas

  • Computer Science Applications
  • Electrical and Electronic Engineering
  • Applied Mathematics

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  • Цитировать

    Jayakody, D. N. K., Qaraqe, M., & Dinis, R. (2018). An Angular Soft Forwarding Scheme for Wireless Cooperative Relay Networks. В 2018 IEEE 87th Vehicular Technology Conference, VTC Spring 2018 - Proceedings (Том 2018-June, стр. 1-6). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/VTCSpring.2018.8417566