의사잡음 부호를 적용한 효율적인 인터리버분할 다중접속방식

Abstract

This thesis presents using a pseudorandom noise code instead of simple repetition code for an efficient interleave-division multiple access(IDMA) scheme that is being considered as 4th generation mobile radio system. This scheme is the manipulation of repetition code based on pseudorandom noise code that is one of the core techniques of the IDMA scheme. A conventional IDMA system is focused on various interleavers applied for user separation. In this thesis, a maximal length sequence repetition code applied in the IDMA system is introduced and this proposed system is compared with existing systems in terms of BER performance under an additive white Gaussian noise(AWGN) condition. Performance evaluation shows that the proposed system provides a comparable BER performance. The use of the pseudorandom noise repetition code can thus facilitate an efficient design of the IDMA system that is a strong candidate for 4G mobile radio systems.