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Analysis of sum-product decoding of low-density parity-check codes using a Gaussian approximation
Density evolution is an algorithm for computing the capacity of low-density parity-check (LDPC) codes under message-passing decoding. For memoryless binary-input continuous-output additive whiteExpand
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On the design of low-density parity-check codes within 0.0045 dB of the Shannon limit
We develop improved algorithms to construct good low-density parity-check codes that approach the Shannon limit very closely. For rate 1/2, the best code found has a threshold within 0.0045 dB of theExpand
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Sphere-bound-achieving coset codes and multilevel coset codes
A simple sphere bound gives the best possible tradeoff between the volume per point of an infinite array L and its error probability on an additive white Gaussian noise (AWGN) channel. It is shownExpand
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On the construction of some capacity-approaching coding schemes
This thesis proposes two constructive methods of approaching the Shannon limit very closely. Interestingly, these two methods operate in opposite regions, one has a block length of one and the otherExpand
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Noisy Network Coding
A noisy network coding scheme for communicating messages between multiple sources and destinations over a general noisy network is presented. For multi-message multicast networks, the schemeExpand
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Noisy network coding
A new coding scheme for multicasting multiple sources over a general noisy network is presented. The scheme naturally extends both network coding over noiseless networks by Ahlswede, Cai, Li, andExpand
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Capacity of the Gaussian Two-way Relay Channel to within 1/2 Bit
In this paper, a Gaussian two-way relay channel, where two source nodes exchange messages with each other through a relay, is considered. We assume that all nodes operate in full-duplex mode andExpand
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Aligned interference neutralization and the degrees of freedom of the 2 × 2 × 2 interference channel
We show that the 2 × 2 × 2 interference network, i.e., the multihop interference network formed by concatenation of two 2-user interference channels achieves the min-cut outer bound value of 2 DoF,Expand
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Capacity of the Gaussian Two-Way Relay Channel to Within Bit
In this paper, a Gaussian two-way relay channel, where two source nodes exchange messages with each other through a relay, is considered. We assume that all nodes operate in full-duplex mode andExpand
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Transmit Optimization for Relay-Based Cellular OFDMA Systems
This paper considers a broadband cellular orthogonal frequency-division multiple-access (OFDMA) system with relay nodes operating in decode-and-forward and half-duplex mode. Two transmit resourceExpand
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