file.pdf (95.2 kB)
0/0

Real-time software implementation of an IEEE 802.11a baseband receiver on Intel multicore

Download (95.2 kB)
journal contribution
posted on 01.05.2011 by Christian R. Berger, Volodymyr Arbatov, Yevgen Voroneko, Franz Franchetti, Markus Puschel

We present a software-only implementation of an IEEE 802.11a (WiFi) receiver optimized for Intel multicore platforms. The receiver is about 50 times faster than a straightforward C implementation, i.e., an implementation that has the same functionality, but leaves optimization completely to the compiler. Our hand-optimized implementation achieves real-time for all data rates up to the maximum of 54 Mbit/s on a Core i7, clocked at 3.3 GHz, and for up to 12 Mbit/s on an Atom, clocked at 1.6 GHz, using two cores in both cases. To achieve this performance we use up to two threads, up to 16-way vectorization using Intel's SSE, and various other optimizations.

History

Publisher Statement

© 2011 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.

Date

01/05/2011

Exports

Exports