The Journal of Machine Learning Research
Hot topic: physical-layer network coding
Proceedings of the 12th annual international conference on Mobile computing and networking
Network Coding Theory (Foundations and Trends(R) in Communications and Information Theory)
Network Coding Theory (Foundations and Trends(R) in Communications and Information Theory)
Embracing wireless interference: analog network coding
Proceedings of the 2007 conference on Applications, technologies, architectures, and protocols for computer communications
XORs in the air: practical wireless network coding
IEEE/ACM Transactions on Networking (TON)
Complex ICA using generalized uncorrelating transform
Signal Processing
IEEE Transactions on Information Theory
Cooperative diversity in wireless networks: Efficient protocols and outage behavior
IEEE Transactions on Information Theory
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This paper proposes a new combinational technology which is feasible to apply physical-layer network coding (PNC) to wireless fading channel. The key step of PNC is that sources broadcast signals simultaneously without orthogonal scheduling. Naturally, the signals overlap in the free space at the receivers. Since the signals from different sources are mutual independent, rooted on this rational assumption, an enhanced Joint Diagonalization Separation named Altering Row Diagonalization (ARD) algorithm is exploited to separate these signals by maximizing the cost function measuring independence among them. This APNC (ARD PNC) methodology provides an innovative apparatus to implement signal-level network coding at the presence of interference and without any priori information about channels in fading environments, thus a blind way. Besides throughput gains via fully utilization of channel degree of freedom, APNC diversity gains could be ensured by relaying selection. In conclusion, the proposed APNC performs well with higher bandwidth efficiency and lower error rate.