Energy-Efficient Hardware Architectures for the Packet Data Convergence Protocol in LTE-Advanced Mobile Terminals
Joint Authors
Pohl, Nils
Traboulsi, Shadi
Frascolla, Valerio
Bilgic, Attila
Hausner, Josef
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-15, 15 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2013-01-15
Country of Publication
Egypt
No. of Pages
15
Main Subjects
Engineering Sciences and Information Technology
Abstract EN
In this paper, we present and compare efficient low-power hardware architectures for accelerating the Packet Data Convergence Protocol (PDCP) in LTE and LTE-Advanced mobile terminals.
Specifically, our work proposes the design of two cores: a crypto engine for the Evolved Packet System Encryption Algorithm (128-EEA2) that is based on the AES cipher and a coprocessor for the Least Significant Bit (LSB) encoding mechanism of the Robust Header Compression (ROHC) algorithm.
With respect to the former, first we propose a reference architecture, which reflects a basic implementation of the algorithm, then we identify area and power bottle-necks in the design and finally we introduce and compare several architectures targeting the most power-consuming operations.
With respect to the LSB coprocessor, we propose a novel implementation based on a one-hot encoding, thereby reducing hardware’s logic switching rate.
Architectural hardware analysis is performed using Faraday’s 90 nm standard-cell library.
The obtained results, when compared against the reference architecture, show that these novel architectures achieve significant improvements, namely, 25% in area and 35% in power consumption for the 128-EEA2 crypto-core, and even more important reductions are seen for the LSB coprocessor, that is, 36% in area and 50% in power consumption.
American Psychological Association (APA)
Traboulsi, Shadi& Frascolla, Valerio& Pohl, Nils& Hausner, Josef& Bilgic, Attila. 2013. Energy-Efficient Hardware Architectures for the Packet Data Convergence Protocol in LTE-Advanced Mobile Terminals. VLSI Design،Vol. 2013, no. 2013, pp.1-15.
https://search.emarefa.net/detail/BIM-466587
Modern Language Association (MLA)
Traboulsi, Shadi…[et al.]. Energy-Efficient Hardware Architectures for the Packet Data Convergence Protocol in LTE-Advanced Mobile Terminals. VLSI Design No. 2013 (2013), pp.1-15.
https://search.emarefa.net/detail/BIM-466587
American Medical Association (AMA)
Traboulsi, Shadi& Frascolla, Valerio& Pohl, Nils& Hausner, Josef& Bilgic, Attila. Energy-Efficient Hardware Architectures for the Packet Data Convergence Protocol in LTE-Advanced Mobile Terminals. VLSI Design. 2013. Vol. 2013, no. 2013, pp.1-15.
https://search.emarefa.net/detail/BIM-466587
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-466587