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DCT-based compression scheme for OFDM baseband signals

Fonseca, Maria Nilma; Ramalho, Leonardo; Klautau, Aldebaro; Lu, Chenguang; Berg, Miguel LU and Host, Stefan LU (2018) 10th Annual Wireless Days Conference, WD 2018 In 2018 Wireless Days, WD 2018 2018-April. p.92-97
Abstract

The requirements on the data rates of communication systems increase roughly an order of a magnitude at each new generation. This increase can be especially noticeable for the new centralized radio access networks (C-RAN) scenarios, considered for meeting the requirements of the fifth generation (5G) wireless systems. The general C-RAN architecture normally assumes data transmission in the form of digitized baseband, i.e. I/Q samples. This paper proposes a relatively low-complexity compression scheme for LTE OFDM baseband samples based on transform coding, using the discrete cosine transform (DCT). The compression method is evaluated in both downlink and uplink. The results show that this process can be configured to achieve compression... (More)

The requirements on the data rates of communication systems increase roughly an order of a magnitude at each new generation. This increase can be especially noticeable for the new centralized radio access networks (C-RAN) scenarios, considered for meeting the requirements of the fifth generation (5G) wireless systems. The general C-RAN architecture normally assumes data transmission in the form of digitized baseband, i.e. I/Q samples. This paper proposes a relatively low-complexity compression scheme for LTE OFDM baseband samples based on transform coding, using the discrete cosine transform (DCT). The compression method is evaluated in both downlink and uplink. The results show that this process can be configured to achieve compression ratio according with the load, for example, in the range of 5:1 to 31:1, with error vector magnitudes (EVMs) lower than 2.8%.

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Please use this url to cite or link to this publication:
author
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
in
2018 Wireless Days, WD 2018
volume
2018-April
pages
6 pages
publisher
IEEE Computer Society
conference name
10th Annual Wireless Days Conference, WD 2018
external identifiers
  • scopus:85047796879
ISBN
9781538656327
DOI
10.1109/WD.2018.8361700
language
English
LU publication?
yes
id
0c9b68da-1e89-48be-b365-15db0eb44f09
date added to LUP
2018-06-13 14:58:57
date last changed
2018-06-13 14:58:57
@inproceedings{0c9b68da-1e89-48be-b365-15db0eb44f09,
  abstract     = {<p>The requirements on the data rates of communication systems increase roughly an order of a magnitude at each new generation. This increase can be especially noticeable for the new centralized radio access networks (C-RAN) scenarios, considered for meeting the requirements of the fifth generation (5G) wireless systems. The general C-RAN architecture normally assumes data transmission in the form of digitized baseband, i.e. I/Q samples. This paper proposes a relatively low-complexity compression scheme for LTE OFDM baseband samples based on transform coding, using the discrete cosine transform (DCT). The compression method is evaluated in both downlink and uplink. The results show that this process can be configured to achieve compression ratio according with the load, for example, in the range of 5:1 to 31:1, with error vector magnitudes (EVMs) lower than 2.8%.</p>},
  author       = {Fonseca, Maria Nilma and Ramalho, Leonardo and Klautau, Aldebaro and Lu, Chenguang and Berg, Miguel and Host, Stefan},
  booktitle    = {2018 Wireless Days, WD 2018},
  isbn         = {9781538656327},
  language     = {eng},
  month        = {05},
  pages        = {92--97},
  publisher    = {IEEE Computer Society},
  title        = {DCT-based compression scheme for OFDM baseband signals},
  url          = {http://dx.doi.org/10.1109/WD.2018.8361700},
  volume       = {2018-April},
  year         = {2018},
}