Managing wireless Internet information of electronic advertising

This paper presents a new method for coding information based on CDMA, where two families of orthogonal coding sequences have been used. The data stream of each page or each link´s page is coded with a unique set of Walsh-Hadamard (WH) function, while the whole data stream of a particular base station is coded using another class of binary coding sequence called the bent sequence. Numerical results are presented and the results show that a system with bent coding has a significant improvement in performance in terms of bit error rate and number of simultaneous users in comparison with other sequence