Dynamic Resource Allocation in High Speed Mobile OFDMA System

Author

GONG, Min ; Zhang, Chao ; Lu, Jianhua ; Lin, Xiaokang

Author_Institution

Dept. of Electron. Eng., Tsinghua Univ., Beijing

fYear

2008

Firstpage

3335

Lastpage

3339

Abstract

A novel dynamic resource allocation algorithm is proposed for matching the OFDMA system in high speed mobile environment, which suffers from high inter-carrier interference and large dynamic range of mobile speed for versatile users. With the non-linear optimization, the objective function of the transmission power can be directly mapped with the variables, such as the mobile speed of users, channel state information, modulation and coding schemes etc. Compared with the hitherto resource allocation algorithms in IEEE 802.16e, the proposed scheme has even more comprehensive capability depicting the features for high speed mobile and better performance in BER and QoS guarantee, especially in case the speed is more than 300 km/h.

Keywords

OFDM modulation; intercarrier interference; mobile communication; nonlinear programming; dynamic resource allocation; high speed mobile OFDMA system; intercarrier interference; nonlinear optimization; objective function; transmission power; Aerodynamics; Bit error rate; Bit rate; Doppler shift; Heuristic algorithms; Interference; OFDM modulation; Quality of service; Resource management; Vehicle dynamics;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, 2008. ICC '08. IEEE International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-2075-9

Electronic_ISBN

978-1-4244-2075-9

Type

conf

DOI

10.1109/ICC.2008.627

Filename

4533663