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VLDB
2004
ACM
161views Database» more  VLDB 2004»
15 years 10 months ago
Supporting top-k join queries in relational databases
Ranking queries produce results that are ordered on some computed score. Typically, these queries involve joins, where users are usually interested only in the top-k join results....
Ihab F. Ilyas, Walid G. Aref, Ahmed K. Elmagarmid
IWCMC
2009
ACM
15 years 4 months ago
Adaptive antenna selection at mobile stations for SDMA in WiMAX networks
The IEEE 802.16/WiMAX standards has fully embraced multi-antenna technology and can, thus, deliver robust performance and high transmission rates. Nevertheless, due to its inheren...
Tairan Wang, Zhifeng Tao, Andreas F. Molisch, Phil...
GLOBECOM
2008
IEEE
15 years 4 months ago
Adaptive Soft Frequency Reuse for Inter-Cell Interference Coordination in SC-FDMA Based 3GPP LTE Uplinks
This paper proposes a decentralized adaptive soft frequency reuse scheme for the uplink of a 4G long-term evolution (LTE) system. While universal frequencies reuse (UFR) is being ...
Xuehong Mao, Amine Maaref, Koon Hoo Teo
ICC
2008
IEEE
110views Communications» more  ICC 2008»
15 years 4 months ago
Antenna Selection for Next Generation IEEE 802.16 Mobile Stations
The IEEE 802.16/WiMAX standard has fully embraced multi-antenna technology and can, thus, deliver robust and high transmission rates and higher system capacity. Nevertheless, due ...
Chun Nie, Zhifeng Tao, Neelesh B. Mehta, Andreas F...
WCNC
2008
IEEE
15 years 4 months ago
Performance Improvement for Multichannel HARQ Protocol in Next Generation WiMAX System
Hybrid automatic repeat-request (HARQ) is critical to an IEEE 802.16e OFDMA network, as it can significantly improve the reliability of wireless link. However, as revealed by our...
Zhifeng Tao, Anfei Li, Jinyun Zhang, Toshiyuki Kuz...