Sciweavers

JCM
2007
73views more  JCM 2007»
13 years 3 months ago
A Link Adaptation Algorithm in MIMO-based WiMAX Systems
— In order to extend the coverage of wireless communication to metropolitan scale, the Worldwide Interoperability for Microwave Access (WiMAX) standard was developed and ratifie...
Tsz Ho Chan, Mounir Hamdi, Chui Ying Cheung, Maode...
JCM
2007
78views more  JCM 2007»
13 years 3 months ago
Blind CFO Estimators for OFDM/OQAM Systems With Null Subcarriers
— This paper deals with the problem of blind carrier-frequency offset (CFO) estimation in OFDM systems based on offset quadrature amplitude modulation (OFDM/OQAM) with null subca...
Tilde Fusco, Mario Tanda
JCM
2007
76views more  JCM 2007»
13 years 3 months ago
On the Tradeoff Between Blocking and Dropping Probabilities in Multi-cell CDMA Networks
— This paper is a sequel of previous work, in which we proposed a model and computational technique to calculate the Erlang capacity of a single CDMA cell that supports elastic s...
Gábor Fodor, Miklós Telek
JCM
2007
52views more  JCM 2007»
13 years 3 months ago
Superposition Modulated Cooperative Diversity for Half-duplex Scenario
Abstract— In this paper, the cooperative diversity with superposition modulation, which has been proposed as an instance of “dirty paper coding”, is theoretically analyzed us...
Koji Ishii
JCM
2007
191views more  JCM 2007»
13 years 3 months ago
Using Antenna Array Redundancy and Channel Diversity for Secure Wireless Transmissions
— The use of signal processing techniques to protect wireless transmissions is proposed as a way to secure wireless networks at the physical layer. This approach addresses a uniq...
Xiaohua Li, Juite Hwu, E. Paul Ratazzi
JCM
2007
82views more  JCM 2007»
13 years 3 months ago
Secret Sharing Schemes With General Access Structure Based On MSPs
— In this paper we introduce two operations of access structure to build large monotone span programs MSPs from small MSPs. Furthermore, we point out a new method of constructing...
Jun Xu, Xiaomin Zha
JCM
2007
79views more  JCM 2007»
13 years 3 months ago
Time Slot Assignment for Maximum Bandwidth in a Mobile Ad Hoc Network
—Time slot assignment is essential to provide the calculated bandwidth in a TDMA (Time Division Multiple Access)-based mobile ad hoc network (MANET), which is a focus of attentio...
Jianping Li, Yasushi Wakahara