Low computation resource allocation for adaptive OFDM power line communication

Abstract

This paper proposed a power and bit allocation algorithm for broadband power line communication system. A concept of Virtual Bit was introduced in the algorithm and the water line could be determined easily using the concept. After the water line was determined, the power and bits that exceeded upper limit were adjusted to achieve the optimal allocation target. This algorithm allocated bits in batches, and did not need iteration. The simulation result shows that the computational complexity decreased significantly compared with traditional bit adding algorithm, while the system throughput isclose to the maximum. © 2012 Springer-Verlag GmbH.