TWC
2010
13 years 7 months ago
2010
User cooperation, whereby multiple users share their antennas and transmit to a common destination in a collaborative manner, has been shown to be an effective way to achieve spat...
GLOBECOM
2010
IEEE
13 years 10 months ago
2010
IEEE
Providing air-time guarantees across a group of clients forms a fundamental building block in sharing an access point (AP) across different virtual network providers. Though this p...
PE
2008
Springer
14 years 11 days ago
2008
Springer
TCP-based data flows generate packets and ACKs in two directions, be it in the wireline or wireless networks. In the latter case, packets are typically found in the downlink where...
CORR
2008
Springer
14 years 16 days ago
2008
Springer
This paper focuses on the cross-layer issue of resource allocation for energy efficiency in the uplink of a multiuser MIMO wireless communication system. Assuming that all of the ...
INFOCOM
2003
IEEE
14 years 5 months ago
2003
IEEE
Abstract—Uplink scheduling in wireless systems is gaining importance due to arising uplink intensive data services (ftp, image uploads etc.), which could be hampered by the curre...
VTC
2007
IEEE
14 years 6 months ago
2007
IEEE
—A single-carrier frequency-interleaved spread spectrum multiple access (SC-FI-SSMA), which we recently proposed, uses frequency-domain interleaving and MMSE-FDE to remove the up...
VTC
2007
IEEE
14 years 6 months ago
2007
IEEE
—2-dimensional (2D) block spread direct sequence-code division multiple access (DS-CDMA) allows uplink mutlirate/mutli-connection transmissions without causing a serious multi-ac...
ICC
2007
IEEE
14 years 6 months ago
2007
IEEE
Abstract— Since carrier frequency offset destroys user’s signal orthogonality in Orthogonal Frequency-Division Multiplexing Access (OFDMA) uplink transmission, resulting in an ...
VTC
2008
IEEE
14 years 6 months ago
2008
IEEE
— In this paper, we study the joint design of uplink and downlink resources in OFDMA-based systems. We first analyze the interactions between uplink and downlink, due essentiall...
ICC
2008
IEEE
14 years 6 months ago
2008
IEEE
— We present the unfairness problem between the uplink and the downlink flows in the IEEE 802.11e infrastructure Basic Service Set (BSS) when the default settings of the Enhance...