Cost-Delay Tradeoffs for Two-Way Relay Networks
نویسندگان
چکیده
منابع مشابه
Power Allocation Strategies in Block-Fading Two-Way Relay Networks
This paper aims at investigating the superiority of power allocation strategies, based on calculus of variations in a point-to-point two-way relay-assisted channel incorporating the amplify and forward strategy. Single and multilayer coding strategies for two cases of having and not having the channel state information (CSI) at the transmitters are studied, respectively. Using the notion of cal...
متن کاملBeamforming for Underlay Two - Way Relay Networks
Although underlay networks mitigate the dual problems of spectrum congestion and spectrum under-utilization, the bi-directional (primary-to-secondary and secondaryto-primary) interference issues must be addressed to improve their reliability, coverage and capacity. To address these problems, this thesis investigates beamforming and two-way relaying. Specifically, the two underlay configurations...
متن کاملSecure Communications for Two-Way Relay Networks Via Relay Chatting
In this paper, we investigate a two-way relay network consisting of two sources, multiple cooperative relays and an eavesdropper. To enhance secure communications, a new relay chatting based on transmission scheme is proposed. Specifically, the proposed scheme selects a best relay that maximize the sum mutual information among the sources to forward the sources’ signals using an amplify-and-for...
متن کاملOptimal and achievable cost/delay tradeoffs in delay-tolerant networks
Tradeoffs between the packet delivery delay and other metrics are a recurring theme in Delay Tolerant Networks (DTNs). In this work we study these tradeoffs, first in a general, and then in a more specific, mobile wireless setting. We first develop a general setting in which the packet delivery delay can be traded off with a packet transportation cost that is comprised of a transmission cost an...
متن کاملBounds for Multiple-Access Relay Channels with Feedback via Two-way Relay Channel
In this study, we introduce a new two-way relay channel and obtain an inner bound and an outer bound for the discrete and memoryless multiple access relay channels with receiver-source feedback via two-way relay channel in which end nodes exchange signals by a relay node. And we extend these results to the Gaussian case. By numerical computing, we show that our inner bound is the same with o...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: IEEE Transactions on Wireless Communications
سال: 2011
ISSN: 1536-1276
DOI: 10.1109/twc.2011.101211.101360