Zobrazeno 1 - 10
of 121
pro vyhledávání: '"Mitsuo Yokoyama"'
Publikováno v:
In Discrete Applied Mathematics 2001 115(1):63-71
Publikováno v:
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. :298-306
In this paper, performance of a novel interference cancellation technique for the single user detection in a direct-sequence code-division multiple access (DS-CDMA) system has been investigated. This new algorithm is based on the Cycle-and-Add proper
Publikováno v:
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. :3335-3345
This paper presents a novel interference cancellation (IC) scheme for both synchronous and asynchronous direct-sequence code-division multiple-access (DS-CDMA) wireless channels. In the DS-CDMA system, the multiple access interference (MAI) and the n
Publikováno v:
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. :1344-1352
We propose a novel clustering scheme considering non-uniform correlation distribution derived by experimental environment property. Firstly, we investigate the entropy property of actual environment, and then show that its spatial correlation is not
Publikováno v:
ETRI Journal. 29:143-152
In this paper, we propose a time-varying modified minimum mean-squared error (MMSE) detector for the detection of higher data rate signals in a multirate asynchronous code-division multiple-access (CDMA) system which is signaled in a fast Rayleigh fa
Publikováno v:
Annals of the New York Academy of Sciences. 122:439-450
Publikováno v:
Electronics and Communications in Japan (Part III: Fundamental Electronic Science). 89:11-22
This paper presents a direction-oriented routing protocol (DORP) which exploits the features of the intervehicle multihop wireless communications (IVC) environment. Assuming a one-dimensional highway as the IVC environment, the topology of the IVC ne
Publikováno v:
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. :2869-2877
In this paper, we propose a single-user strategy for demodulating asynchronous direct-sequence code-division multiple access (DS/CDMA) signals for improving the performance of the adaptive receiver in fast fading channels. Since the adaptive receiver
Publikováno v:
IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences. :2905-2914
This paper proposes a novel PN (Pseudo Noise) synchronization system using Cycle-and-Add property of M-sequence featuring fast acquisition in DS-CDMA (direct sequence-code division multiple access). Fast acquisition is carried out by generating a PN