Title:
改良されたプリコーディング装置および方法
Document Type and Number:
Japanese Patent JP3547443
Kind Code:
B2
Abstract:
An improved precoding technique (700) and device (100) allows transmission of a signal point sequence over a channel h(D) to provide efficient data transfer in the presence of intersymbol interference and noise at data rates approaching channel capacity. This improved technique works with trellis-coded modulation and with any signal constellation. Thus, the present invention simplifies shaping and allows signaling at fractional rates without constellation switching. A key advantage of the present invention over prior art is its ability to achieve reduced dither loss by selecting the output components of a mapper based on past components of a channel output sequence.
Inventors:
Yubogur, M. Bedat
Application Number:
JP50404295A
Publication Date:
July 28, 2004
Filing Date:
June 24, 1994
Export Citation:
Assignee:
MOTOROLA INCORPORATED
International Classes:
H03M5/14; H03M13/00; H04L25/03; H04L25/08; H04L25/497; H04L27/34; (IPC1-7): H04L25/08; H03M5/14; H03M13/00; H04L25/497
Domestic Patent References:
| JP318157A | ||||
| JP310423A | ||||
| JP3207145A | ||||
| JP6209306A | ||||
| JP630055A | ||||
| JP6292160A | ||||
| JP5219128A |
Attorney, Agent or Firm:
Kazuo Shamoto
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Hideo Tanaka
Shinsuke Onuki
Tadashi Masui
Yasushi Kobayashi
Akio Chiba
Hiroyuki Tomita
Hideo Tanaka
Shinsuke Onuki