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Distributed space-time block coding for two-way wireless relaying networks: improved performance under imperfect synchronization
conference contribution
posted on 2023-05-23, 09:05 authored by El Astal, M-TO, Brian SalmonBrian Salmon, Jan OlivierJan OlivierTwo-way Wireless Relaying Networks (TWRNs) have attracted interest recently due to the substantial bandwidth efficiency and performance they can achieve. So far, most research has assumed perfect timing synchronization within the network. Unfortunately, perfect synchronization is difficult (or impossible) to achieve as a timing misalignment between the received versions of the two-way transmitted signals will occur at both transmission phases. In this paper, an enhanced Parallel Interference Cancellation (PIC) detector for TWRNs employing a Space-time block code is proposed to mitigate efficiently the performance degradation caused by imperfect synchronization. In addition, a change in the transmission scheme of the TWRN is also introduced that will enable a symbol-wise decoding process at the receiving node. Unlike the previous PIC detector, numerical simulations show that the proposed detection scheme can achieve performance close to that of perfect synchronization even under severe imperfect synchronization conditions in just two iterations, while maintaining a low-level of computational complexity.
History
Publication title
Proceedings of the 2014 IEEE Wireless Communications and Networking ConferencePagination
1176-1181ISBN
978-1-4799-3083-8Department/School
School of EngineeringPublisher
IEEEPlace of publication
New Jersey, USAEvent title
2014 IEEE Wireless Communications and Networking ConferenceEvent Venue
Istanbul, TurkeyDate of Event (Start Date)
2014-04-06Date of Event (End Date)
2014-04-09Rights statement
Copyright 2014 IEEERepository Status
- Restricted