Title :
Round-off error in block-floating-point structures
Author :
Rohani, E. ; Fakhraie, S. Mehdi
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Tehran, Iran
Abstract :
A report is made on one of the issues first observed when using a block-floating-point system in a time equaliser of an ADSL modem. It is believed that, until now, this important phenomenon has been neglected by researchers. It is shown that neglecting this issue may increase the round-off error significantly. Two solutions to improve performance are proposed.
Keywords :
digital subscriber lines; equalisers; floating point arithmetic; modems; roundoff errors; ADSL modem; asymmetric digital subscriber lines; block-floating-point structure; round-off error; time equalizer;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20063397
