Publications related to Code-division multiple access

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Polar Codes for Arbitrary DMCs and Arbitrary MACs

Emre Telatar, Rajai Nasser

Polar codes are constructed for arbitrary channels by imposing an arbitrary quasi-group structure on the input alphabet. Just as with usual polar codes, the block error probability under successive cancellation decoding is O(2^(-N^(1/2-epsilon))), where N ...

Institute of Electrical and Electronics Engineers2016

Low EMI signaling for parallel conductor interfaces

Mohammad Amin Shokrollahi, Nicolae Chiurtu

Methods are disclosed for creation of vector signaling codes having reduced or minimized electromagnetic emissions when transmitted over multiple conductor communications media such as microstrip channels. Particular code formulation constraints are shown ...

2016

Wave-Like Solutions of General 1-D Spatially Coupled Systems

Rüdiger Urbanke, Shrinivas Kudekar

We establish the existence of wave-like solutions to spatially coupled graphical models which, in the large size limit, can be characterized by a 1-D real-valued state. This is extended to a proof of the threshold saturation phenomenon for all such models, ...

Ieee-Inst Electrical Electronics Engineers Inc2015

On lattice codes for Gaussian interference channels

Michael Christoph Gastpar, Jingge Zhu

The usefulness of lattice codes is investigated for two-user Gaussian interference channels (IC). A coding scheme based on the compute-and-forward technique is shown to achieve the capacity region of the Gaussian IC under strong interference. The proposed ...

2015

Second-order asymptotics for the Gaussian MAC with degraded message sets

Jonathan Mark Scarlett

This paper studies the second-order asymptotics of the Gaussian multiple-access channel with degraded message sets. For a fixed average error probability epsilon is an element of (0, 1) and an arbitrary point on the boundary of the capacity region, we char ...

Institute of Electrical and Electronics Engineers2015

Adaptive Tracking Techniques in Non-Stationary Environments

Pierre-André Farine, Cyril Botteron, Aleksandar Jovanovic, Miguel Angel Ribot Sanfelix

The continuously changing environments have been the main challenge for classical GNSS receiver implementations, as they can have a great impact on signal tracking performance and positioning. For this reason techniques capable of mitigating the impact of ...

2015

Second-Order Rate Region of Constant-Composition Codes for the Multiple-Access Channel

Jonathan Mark Scarlett, Albert Guillén i Fàbregas

This paper studies the second-order asymptotics of coding rates for the discrete memoryless multiple-access channel (MAC) with a fixed target error probability. Using constant-composition random coding, coded time-sharing, and a variant of Hoeffding's comb ...

Ieee-Inst Electrical Electronics Engineers Inc2015

Resource Allocation and Performance Analysis for Multiuser Video Transmission over Doubly Selective Channels

Laura Toni

We consider an uplink multicarrier system with multiple video users who want to send compressed video data to the base station. In the time domain, we model the time varying channel using Jakes’ model, and in the frequency domain, each subcarrier is assume ...

Institute of Electrical and Electronics Engineers2015

Code-division multiple access

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Polar Codes for Arbitrary DMCs and Arbitrary MACs

Low EMI signaling for parallel conductor interfaces

Wave-Like Solutions of General 1-D Spatially Coupled Systems

On lattice codes for Gaussian interference channels

Fourier Analysis of MAC Polarization

Second-order asymptotics for the Gaussian MAC with degraded message sets

Bringing physical layer cooperation closer to practical wireless systems

Adaptive Tracking Techniques in Non-Stationary Environments

Second-Order Rate Region of Constant-Composition Codes for the Multiple-Access Channel

Resource Allocation and Performance Analysis for Multiuser Video Transmission over Doubly Selective Channels

Bringing physical layer cooperation closer to practical wireless systems

Polar Codes for Arbitrary DMCs and Arbitrary MACs

Low EMI signaling for parallel conductor interfaces

Second-order asymptotics for the Gaussian MAC with degraded message sets

Wave-Like Solutions of General 1-D Spatially Coupled Systems

Second-Order Rate Region of Constant-Composition Codes for the Multiple-Access Channel

On lattice codes for Gaussian interference channels

Adaptive Tracking Techniques in Non-Stationary Environments

Fourier Analysis of MAC Polarization

Resource Allocation and Performance Analysis for Multiuser Video Transmission over Doubly Selective Channels