Information Theory and Reliable Communication
Information Theory and Reliable Communication
An algebraic approach to network coding
IEEE/ACM Transactions on Networking (TON)
Hot topic: physical-layer network coding
Proceedings of the 12th annual international conference on Mobile computing and networking
Random coding techniques for nonrandom codes
IEEE Transactions on Information Theory
IEEE Transactions on Information Theory
IEEE Transactions on Information Theory
Sphere-packing bounds revisited for moderate block lengths
IEEE Transactions on Information Theory
Computation Over Multiple-Access Channels
IEEE Transactions on Information Theory
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We investigate the error exponent of exclusive-or multiple-access channels (XMAC) where the receiver wants to reconstruct the exclusive-or of incoming messages from two transmitters. We consider both the multiple access channel (MAC) strategy and the network coding (NC) strategy. In our analysis, the cutoff rate is used as a performance measure. Assuming a Gaussian XMAC and binary phase-shift keying (BPSK) modulation at each node, we show that the MAC strategy performs better than the NC strategy in the low rate region while the NC strategy performs better in the high rate region.