发明名称 |
NOISE POWER ESTIMATION IN DIGITAL COMMUNICATIONS SYSTEMS WITH FAST FADING CHANNELS |
摘要 |
An accurate and fast method for estimation of noise power in digital communication systems is presented. Exemplary embodiments of the present invention do not rely upon the need for embedding reference sequences in the transmitted data. Accordingly, such exemplary embodiments are especially suited for tracking variations of noise power in digital communication systems with fast fading channels. |
申请公布号 |
US2016028423(A1) |
申请公布日期 |
2016.01.28 |
申请号 |
US201414774930 |
申请日期 |
2014.03.18 |
申请人 |
SIRIUS XM RADIO INC. |
发明人 |
Sazzad Sharif;Scarpa Carl;Schell Edward |
分类号 |
H04B1/10;H04L1/20;H04L25/06 |
主分类号 |
H04B1/10 |
代理机构 |
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代理人 |
|
主权项 |
1. A method for estimating noise power in digital communication systems, comprising:
receiving a sequence of points r(k) at a receiver over a communications channel; generating a modified sequence of points ŝ(k) by hard slicing; and generating a first noise power estimate for the communications channel as:nddEDE,raw2=1K∑k=0K-1s^(k)-r(k)2, where r(k) are received points and ŝ(k) are hard-sliced points obtained from r(k). |
地址 |
New York NY US |