Blind Known Interference Cancellation
Shengli Zhang, Soung-Chang Liew, and Hui Wang

TL;DR
This paper introduces BKIC, a novel interference cancellation method that effectively removes known interference without requiring channel estimates, outperforming traditional schemes in various fading scenarios.
Contribution
The paper proposes BKIC, a new interference cancellation scheme that operates without interference channel information, using symbol combining and two algorithms for signal recovery.
Findings
BKIC outperforms traditional interference cancellation methods.
BKIC achieves near optimal performance in slow and fast fading scenarios.
Both BKIC algorithms have lower complexity than existing methods.
Abstract
This paper investigates interference-cancellation schemes at the receiver, in which the original data of the interference is known a priori. Such a priori knowledge is common in wireless relay networks. For example, a transmitting relay could be relaying data that was previously transmitted by a node, in which case the interference received by the node now is actually self information. Besides the case of self information, the node could also have overheard or received the interference data in a prior transmission by another node. Directly removing the known interference requires accurate estimate of the interference channel, which may be difficult in many situations. In this paper, we propose a novel scheme, Blind Known Interference Cancellation (BKIC), to cancel known interference without interference channel information. BKIC consists of two steps. The first step combines adjacent…
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Taxonomy
TopicsCooperative Communication and Network Coding · Full-Duplex Wireless Communications · Advanced Wireless Communication Technologies
