464 search results - page 69 / 93 » Detecting the number of signals in wireless DS-CDMA networks |
MOBIHOC
2006
ACM
14 years 7 months ago
2006
ACM
To date, topology control in wireless ad hoc and sensor networks--the study of how to compute from the given communication network a subgraph with certain beneficial properties--h...
UIST
2004
ACM
14 years 29 days ago
2004
ACM
Ubiquitous and Wearable Computing both have the goal of pushing the computer into the background, supporting all kinds of human activities. Application areas include areas such as...
WCNC
2008
IEEE
14 years 1 months ago
2008
IEEE
—Passive RFID tags transmit their ID information to a tag reader upon energization by the reader. These transmitted signals, or IDs, may collide if multiple tags transmit their I...
WCNC
2008
IEEE
14 years 1 months ago
2008
IEEE
—Among all blind channel estimation problems, subspace-based algorithms are attractive due to its fastconverging nature. It primarily exploits the orthogonality structure of the ...
GLOBECOM
2007
IEEE
14 years 1 months ago
2007
IEEE
This paper addresses initial ranging (uplink synchronization and power control) for TDD OFDMA systems. Exploiting the channel knowledge from the downlink channel together with ini...