Adaptive coding for OFDM based systems using generalized concatenated codes
2005 (English)In: VTC2005-SPRING: 2005 IEEE 61ST VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-5, PROCEEDINGS, 2005, 649-653 p.Conference paper (Refereed)
Orthogonal Frequency Division Multiplexing (OFDM) is considered to be a promising candidate for future high-speed wireless communication systems. In this paper we present an adaptive coding scheme for OFDM based systems using generalized concatenated codes. We study the performance of HIPERLAN/2 after encoding with the proposed coding scheme and compare it to the standard convolutional coding scheme currently used. The criteria of our study is the optimization of the throughput. Through the adaptive scheme, we propose a modulation selection based on the average quality of the channel, and a code assigning method for the different sub-channels, that adapts to the channel conditions. We argue that the proposed scheme protects the information better than the ones in the conventional systems, since the latter do not take advantage of the individual sub-channel condition. Our simulations show that lower packet error rate can be accomplished for even higher throughput.
Place, publisher, year, edition, pages
2005. 649-653 p.
, IEEE VTS Vehicular Technology Conference Proceedings, ISSN 1090-3038
IdentifiersURN: urn:nbn:se:kth:diva-42819ISI: 000232179300136ScopusID: 2-s2.0-26444478183ISBN: 0-7803-8887-9OAI: oai:DiVA.org:kth-42819DiVA: diva2:447581
61st IEEE Vehicular Technology Conference Location: Stockholm, SWEDEN Date: MAY 30-JUN 01, 2005
QC 201110122011-10-122011-10-122011-10-12Bibliographically approved