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An LPC-based fronthaul compression scheme

Ramalho, Leonardo ; Fonseca, Maria Nilma ; Klautau, Aldebaro ; Lu, Chenguang ; Berg, Miguel LU ; Trojer, Elmar and Höst, Stefan LU (2017) In IEEE Communications Letters 21(2). p.318-321
Abstract

Several new architectures are under investigation for cloud radio access networks, assuming distinct splits of functionality among the network elements. Consequently, the research on radio data compression for the fronthaul is based on assumptions that correspond to a wide variety of tradeoffs among data rate, signal distortion, latency, and computational cost. This letter describes a method for LTE downlink point-topoint signal compression based on linear prediction and Huffman coding, which is suitable for low cost encoding and decoding units with stringent restrictions on power consumption. The proposed method can work at various compression factors, such as 3.3:1 at an average EVM of 0.9%, or 4:1 at an average EVM of 2.1%.

Please use this url to cite or link to this publication:
author
; ; ; ; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
C-RAN, Fronthaul, LPC, LTE signal compression
in
IEEE Communications Letters
volume
21
issue
2
article number
7731140
pages
4 pages
publisher
IEEE - Institute of Electrical and Electronics Engineers Inc.
external identifiers
  • scopus:85015178280
  • wos:000395736700025
ISSN
1089-7798
DOI
10.1109/LCOMM.2016.2624296
language
English
LU publication?
yes
id
0bc04fbc-ca27-43ad-a848-0af8d4c344b3
date added to LUP
2017-03-30 07:58:12
date last changed
2025-01-07 10:33:23
@article{0bc04fbc-ca27-43ad-a848-0af8d4c344b3,
  abstract     = {{<p>Several new architectures are under investigation for cloud radio access networks, assuming distinct splits of functionality among the network elements. Consequently, the research on radio data compression for the fronthaul is based on assumptions that correspond to a wide variety of tradeoffs among data rate, signal distortion, latency, and computational cost. This letter describes a method for LTE downlink point-topoint signal compression based on linear prediction and Huffman coding, which is suitable for low cost encoding and decoding units with stringent restrictions on power consumption. The proposed method can work at various compression factors, such as 3.3:1 at an average EVM of 0.9%, or 4:1 at an average EVM of 2.1%.</p>}},
  author       = {{Ramalho, Leonardo and Fonseca, Maria Nilma and Klautau, Aldebaro and Lu, Chenguang and Berg, Miguel and Trojer, Elmar and Höst, Stefan}},
  issn         = {{1089-7798}},
  keywords     = {{C-RAN; Fronthaul; LPC; LTE signal compression}},
  language     = {{eng}},
  month        = {{02}},
  number       = {{2}},
  pages        = {{318--321}},
  publisher    = {{IEEE - Institute of Electrical and Electronics Engineers Inc.}},
  series       = {{IEEE Communications Letters}},
  title        = {{An LPC-based fronthaul compression scheme}},
  url          = {{http://dx.doi.org/10.1109/LCOMM.2016.2624296}},
  doi          = {{10.1109/LCOMM.2016.2624296}},
  volume       = {{21}},
  year         = {{2017}},
}