512 search results - page 6 / 103 » Random Access Systems with a Time Varying Channel |
ICC
2007
IEEE
14 years 5 months ago
2007
IEEE
— In this paper1 we analyze the capacity of MIMOOFDM systems that utilize pilot symbols to acquire estimation of the radio channel at the receiver. An analytical framework is dev...
GLOBECOM
2009
IEEE
14 years 5 months ago
2009
IEEE
Abstract—In this paper, we consider the Bayesian CramerRao bound (BCRB) for the dynamical estimation of multi-path Rayleigh channel complex gains in data-aided (DA) and non-dataa...
CISS
2008
IEEE
14 years 5 months ago
2008
IEEE
—This paper investigates a slotted random access system where packet capture is modeled using communication theoretic techniques. It is shown that the optimum rates and attempt p...
ICC
2007
IEEE
14 years 5 months ago
2007
IEEE
Abstract— In this paper, we investigate the problem of minimizing the average transmission power of users while guaranteeing the average delay constraints in time-varying uplink ...
INFOCOM
2008
IEEE
14 years 5 months ago
2008
IEEE
—The IEEE 802.16 standard, or WiMAX, has emerged to facilitate high-bandwidth wireless access in realworld metropolitan areas, commonly referred to as 4G. In WiMAX, Hybrid Automa...