December 2001
Intermediate to advanced
336 pages
8h 42m
English
Content preview from OFDM Wireless LANs: A Theoretical and Practical GuideBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Channel Codes
Channel codes are a very important component of any modern digital communication system, and they make today's effective and reliable wireless communications possible. There are several books that concentrate on different channel coding approaches [7, 9, 10, 17, 20]. The basic measure of channel coding performance is coding gain, which is usually measured in dBs as the reduction of required 
to achieve a certain bit error rate in AWGN channel. As an example, IEEE 802.11a could use two methods to achieve 12 Mbits/s data rate. The simplest way would be to use uncoded BPSK modulation on each subcarrier, therefore each OFDM symbol would ...
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