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TWC
2008
146views more  TWC 2008»
9 years 11 months ago
Synchronization, Channel Estimation, and Equalization in MB-OFDM Systems
Abstract-- This paper addresses preamble-based low complexity synchronization, channel estimation and equalization for Zero-padded (ZP) MB-OFDM based UWB systems. The proposed sync...
Yinghui Li, Hlaing Minn, R. M. A. Rajatheva
TWC
2008
99views more  TWC 2008»
9 years 11 months ago
Robust transmit processing for frequency-selective fading channels with imperfect channel feedback
Reliable channel state information at the transmitter (CSIT) can improve the throughput of wireless networks significantly. In a realistic scenario, there is a mismatch between th...
Christof Jonietz, Wolfgang H. Gerstacker, Robert S...
TWC
2008
76views more  TWC 2008»
9 years 11 months ago
Fractional power control for decentralized wireless networks
We consider a new approach to power control in decentralized wireless networks, termed fractional power control (FPC). Transmission power is chosen as the current channel quality r...
Nihar Jindal, Steven Weber, Jeffrey G. Andrews
TWC
2008
155views more  TWC 2008»
9 years 11 months ago
Distributed sensor network localization using SOCP relaxation
The goal of the sensor network localization problem is to determine positions of all sensor nodes in a network given certain pairwise noisy distance measurements and some anchor no...
Seshan Srirangarajan, Ahmed H. Tewfik, Zhi-Quan Lu...
TWC
2008
77views more  TWC 2008»
9 years 11 months ago
Preamble-based cell identification for cellular OFDM systems
Preamble-based cell identification (CID) schemes are derived for orthogonal frequency division multiplexing (OFDM) systems. They include the optimal schemes based on the Bayesian a...
Wooseok Nam, Yong Hoon Lee
TWC
2008
119views more  TWC 2008»
9 years 11 months ago
Flow-level performance of opportunistic OFDM-TDMA and OFDMA networks
Abstract--In this paper, the flow-level performance of opportunistic scheduling in orthogonal frequency division multiplexing (OFDM) networks is studied. The analysis accounts for ...
Lei Lei, Chuang Lin, Jun Cai, Xuemin Shen
TWC
2008
159views more  TWC 2008»
9 years 11 months ago
Resource allocation for spectrum underlay in cognitive radio networks
A resource allocation framework is presented for spectrum underlay in cognitive radio networks. We consider both interference constraints for primary users and quality of service (...
Long Bao Le, Ekram Hossain
TWC
2008
165views more  TWC 2008»
9 years 11 months ago
On the Study of Network Coded AF Transmission Protocol for Wireless Multiple Access Channels
In this paper, the performance of the network coded amplify-forward cooperative protocol is studied. The use of network coding can suppress the bandwidth resource consumed by relay...
Zhiguo Ding, Tharmalingam Ratnarajah, Kin K. Leung
TWC
2008
77views more  TWC 2008»
9 years 11 months ago
Optimizing Joint Erasure- and Error-Correction Coding for Wireless Packet Transmissions
Christian R. Berger, Shengli Zhou, Yonggang Wen, P...
TWC
2008
184views more  TWC 2008»
9 years 11 months ago
Distributed Space-Frequency Coding over Broadband Relay Channels
Abstract--Designing diversity achieving schemes over the wireless broadband fading relay channels is crucial to achieve higher diversity gains. These gains are achieved by exploiti...
Karim G. Seddik, K. J. Ray Liu
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