Wireless baseband processing is characterized by high computation complexity and high data throughput, which is regarded as the most challenging issue for software radio (SR) systems. Recently, with the rapid development of multicore technology, the multicore platforms can provide high computation capacity and high data throughput, which suit the SR systems well. We have presented a SR system on the Cell multicore platform. However, it is observed that the data communication between the baseband processing module and the RF module consumes a mass of system resources. The data I/O communication becomes the bottleneck for the SR system on multicore platform. To resolve this problem, in this paper, an efficient SPU based network module is presented. With the proposed module, all the network packets parsing and packaging is handled by the SPU, the PPU resources are released and the system performance will be improved greatly.
By: Jianwen Chen, Shuwei Bai, Qingguo Zhou
Published in: RC24643 in 2008
LIMITED DISTRIBUTION NOTICE:
This Research Report is available. This report has been submitted for publication outside of IBM and will probably be copyrighted if accepted for publication. It has been issued as a Research Report for early dissemination of its contents. In view of the transfer of copyright to the outside publisher, its distribution outside of IBM prior to publication should be limited to peer communications and specific requests. After outside publication, requests should be filled only by reprints or legally obtained copies of the article (e.g., payment of royalties). I have read and understand this notice and am a member of the scientific community outside or inside of IBM seeking a single copy only.
Questions about this service can be mailed to reports@us.ibm.com .