A sub-optimal joint subcarrier and power allocation algorithm for multiuser OFDM
نویسندگان
چکیده
منابع مشابه
Multiuser OFDM with adaptive subcarrier, bit, and power allocation
Multiuser orthogonal frequency division multiplexing (OFDM) with adaptive multiuser subcarrier allocation and adaptive modulation is considered. Assuming knowledge of the instantaneous channel gains for all users, we propose a multiuser OFDM subcarrier, bit, and power allocation algorithm to minimize the total transmit power. This is done by assigning each user a set of subcarriers and by deter...
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Multiuser orthogonal frequency division multiplexing (OFDM) is a very promising multiple access technique to efficiently utilize limited RF bandwidth and transmit power in wideband transmission over multipath fading channels. When a wideband spectrum is shared by multiple users in multiuser OFDM-based systems, different users may experience different fading conditions at all subcarriers. Each u...
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ژورنال
عنوان ژورنال: IEEE Communications Letters
سال: 2005
ISSN: 1089-7798
DOI: 10.1109/lcomm.2005.1496582