Coding Capacity for a Class of Additive Channels
Abstract
Coding capacity is determined for a class of additive Gaussian channels, and bounds on capacity are obtained for a class of nonGaussian channels. The channels may be with or without memory, stationary or nonstationary. The constraint is partially given in terms of an increasing family of finite-dimensional subspaces. A general expression for the capacity is obtained, which depends upon the relation between the noise covariance and the constraint on the generalized signal-to-noise energy ratio for the code words. The well-known expression for capacity of the discrete-time stationary Gaussian channel is shown to be a special case. The general expression provides new results on capacity for nonstationary discrete-time channels and for continuous- time channels (stationary or nonstationary) with fixed time of transmission. jhd)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1989
- Accession Number
- ADA215054
Entities
People
- Charles R. Baker
Organizations
- University of North Carolina at Chapel Hill