Outage Performance of Decode-and-Forward in Two-Way Relaying With Outdated CSI
نویسندگان
چکیده
منابع مشابه
Outage Performance of Decode-and-Forward in Two-Way Relaying with Outdated Channel State Information
In this paper, we analyze the outage behavior of decode-and-forward relaying in the context of selective two-way cooperative systems. First, a new relay selection metric is proposed to take into consideration both transmission rates and instantaneous link conditions between cooperating nodes. Afterwards, the outage probability of the proposed system is derived for Nakagami-m fading channels in ...
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—The Channel State Information (CSI) plays a significant role in wireless Relay Selection (RS) systems. Due to the time variation of channels, the CSI in the data transmission phase may differ (i.e., is outdated) from that in the relay selection phase. Addressing this issue, the Decode-andForward (DF) Two-Way Relaying (TWR) network is considered, and the impact of outdated CSI on the system pe...
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In this paper, the outage performance of automatic repeat request (ARQ) based opportunistic relaying is analyzed when the channel state information (CSI) for relay selection is outdated. The outage probability is derived in terms of correlation between SNR and outdated SNR of the channel from the selected relay to destination. It is shown that simulation results of the outage probability match ...
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Inspired by the application scenarios such as battery-operated wireless sensor networks (WSN), we investigate the design of an easy-to-implement energy-efficient two-way relaying scheme in which two source nodes exchange their messages with the help of an intermediate relay node. Due to their efficient decoder hardware implementation, block codes, such as Hamming and BCH codes, instead of convo...
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We study the two-user MIMO block fading twoway relay channel in the non-coherent setting, where neither the terminals nor the relay have transmit or receive knowledge of the channel realizations. We present a lower bound on the achievable sum-rate with decode-and-forward (DF) at the relay node. As a byproduct we present an achievable pre-log region of the DF scheme, defined as the limiting rati...
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ژورنال
عنوان ژورنال: IEEE Transactions on Vehicular Technology
سال: 2015
ISSN: 0018-9545,1939-9359
DOI: 10.1109/tvt.2015.2388489