Bit Loading Algorithm of VSF-OFCDM wireless communication  

作　　者：Xu Maotong 

机构地区：[1]George Washington University Washington DC,522 21ST ST N.W. ,APT 213. Washington DC, 20006

出　　处：《International Journal of Technology Management》2013年第2期113-117,共5页国际技术管理

摘　　要：In VSF-OFCDM wireless communication, wireless channel is divided into component channels with the same frequency space according to the frequency, and the carriers on component channels are mutually orthogonal. When there are enough subcarriers, the bandwidth efficiency of the system is close to nyquist limit, which can ensure the utilization ratio of system frequency. Therefore, under the premise of ensuring orthogonal division of channels, the channels received a secondary division according to data rate requirements and power limit of business to make the frequency resource fully used and makes the total power minimal, which realizes the optimal distribution of wireless-communication system resources. The secondary division is represented by bit loading algorithm the best bit number of subcarrier allocation in symbol period. For the characteristics of wide-band multi-media services and granular division of VSF-OFCDM wireless communication, the subject proposes the idea of business-oriented subcarrier allocation, which means that the subcarriers are divided in symbol period with the business as the dominant. Based on the idea, the paper designs service-oriented bit loading algorithm of subcarrier, byte and power combined with distribution based on channel detection, and makes verification and performance analysis on the algorithm.

关 键 词：VSF-OFCDM wireless communication loadilag algorithm 

分 类 号：TN919.81[电子电信—通信与信息系统] TN92[电子电信—信息与通信工程]