TY - GEN

T1 - Bit loading for OFDM with quasi-constant transmission power

AU - Izhak, Elad Ben

AU - Amrani, Ofer

PY - 2006

Y1 - 2006

N2 - This work addresses the problem of adaptive bit loading typically employed for approaching the capacity of a fading channel. Multi-carrier transmission over frequency-selective fading is employed. In particular, this work is concerned with the question of obtaining an adaptation technique that will keep the transmitted power as constant as possible over all subcarriers, i.e. quasi-constant transmission power, assuming a general, un-constrained set of coded-modulation schemes. A computationally efficient algorithm is described for solving this so-called minimum-deviation problem. The proposed solution is shown to be optimum under a given set of constraints. It is also demonstrated, via simulations, to provide throughput comparable to other known methods whose aim is to optimize system throughput.

AB - This work addresses the problem of adaptive bit loading typically employed for approaching the capacity of a fading channel. Multi-carrier transmission over frequency-selective fading is employed. In particular, this work is concerned with the question of obtaining an adaptation technique that will keep the transmitted power as constant as possible over all subcarriers, i.e. quasi-constant transmission power, assuming a general, un-constrained set of coded-modulation schemes. A computationally efficient algorithm is described for solving this so-called minimum-deviation problem. The proposed solution is shown to be optimum under a given set of constraints. It is also demonstrated, via simulations, to provide throughput comparable to other known methods whose aim is to optimize system throughput.

UR - http://www.scopus.com/inward/record.url?scp=50249179838&partnerID=8YFLogxK

U2 - 10.1109/EEEI.2006.321076

DO - 10.1109/EEEI.2006.321076

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AN - SCOPUS:50249179838

SN - 1424402301

SN - 9781424402304

T3 - IEEE Convention of Electrical and Electronics Engineers in Israel, Proceedings

SP - 30

EP - 31

BT - 2006 IEEE 24th Convention of Electrical and Electronics Engineers in Israel, IEEEI

Y2 - 15 November 2006 through 17 November 2006

ER -