EXIT chart optimization of Repeat-Accumulate codes for an N-Frequency T-User Multiple Access Channel with noise
AbstractIn this paper we show how a graph-based systemcan be designed for an N-FSK T-user multiple access channel withnoise. The channel is a frequency selective fast fading channelwith additive white Gaussian Noise. The system does not knowor attempt to determine the fading incurred at a given moment.The system is composed of a multiuser detector and T differentRepeat-Accumulate (RA) decoders. The decoders are optimizedas a set and consequently have the same parameters. A structuralvariation between the users’ encoders/decoders is sufﬁcient toallow for multiple access and channel error correction, whileproviding rates close to channel capacity.
How to Cite
Sharma, M., & Portugheis, J. (2014). EXIT chart optimization of Repeat-Accumulate codes for an N-Frequency T-User Multiple Access Channel with noise. Journal of Communication and Information Systems, 28(1). https://doi.org/10.14209/jcis.2013.4
Copyright (c) 2014 Manish Sharma, Jaime Portugheis
Authors who publish in this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors can enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) before and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).