Performance of concatenated channel coding schemes with block repetition for a wireless indoor high bit rate flexible modem

Author

Sanz, Roberto ; Munoz, Luis ; Mahönen, Petri

Author_Institution

Dept. of Commun. Eng., Cantabria Univ., Santander, Spain

Volume

2

fYear

2001

fDate

Sep/Oct 2001

Abstract

The Wind-Flex project has developed a wireless indoor high bit rate OFDM modem, operating at 17 GHz. This modem is a packet-radio based system with a highly dynamic bit-rate range between 64 Kbit/s and 100 Mbit/s. Simulations for implementation have been done to evaluate the performance of the Wind-Flex modem using a concatenated coding scheme in combination with a TDMA-based block repetition mechanism. A simple ARQ-like delay reduction procedure is also presented. We show that TDMA-based repetition can significantly enhance the performance of the packet-oriented concatenated codec by trading off data rate for robustness. This does not lead to increased complexity in the modem implementation

Keywords

automatic repeat request; channel coding; codecs; concatenated codes; indoor radio; mobile radio; modems; packet radio networks; time division multiple access; wireless LAN; 17 GHz; 64 Kbit/s to 100 Mbit/s; ARQ-like delay reduction; TDMA; Wind-Flex project; block repetition mechanism; channel coding; concatenated coding; data rate; high bit rate OFDM modem; packet radio; packet-oriented concatenated codec; performance evaluation; robustness; wireless LAN; wireless indoor modem; Bit error rate; Bit rate; Channel coding; Codecs; Concatenated codes; Delay; Dynamic range; Modems; OFDM; Time division multiple access;

fLanguage

English

Publisher

ieee

Conference_Titel

Personal, Indoor and Mobile Radio Communications, 2001 12th IEEE International Symposium on

Conference_Location

San Diego, CA

Print_ISBN

0-7803-7244-1

Type

conf

DOI

10.1109/PIMRC.2001.965299

Filename

965299