@inproceedings{e72844e0cd5c4a888c6b9684cc706e30,
title = "A multicarrier CDMA communication system with adaptive transmission power allocation",
abstract = "We propose a multicarrier code-division multiple-access (MC-CDMA) system with adaptive transmission power allocation. The transmission power is allocated over M′ strongest subcarriers among M available ones. Using only M′ subcarriers of which channel gains are relatively large indicates that the transmission power to maintain the desired received signal strength can be reduced, but decreasing M′ also lead to a reduction of effective spreading gain to mitigate the multiple access interference. We analyze the trade-off between M′ and effective spreading gain, and find the optimal M′ that minimizes the average bit error rate (BER). Our results show that the BER can be significantly reduced if M′ is properly chosen, and transmit signals over only the strongest subcarrier (M′=1) is the best especially for low SNR regions.",
keywords = "adaptive, CDMA, multicarrier",
author = "Lee, \{Ye Hoon\}",
year = "2012",
doi = "10.1007/978-3-642-35264-5\_54",
language = "English",
isbn = "9783642352638",
series = "Communications in Computer and Information Science",
pages = "404--409",
booktitle = "Computer Applications for Security, Control and System Engineering - International Conferences, SecTech, CA, CES3 2012, Held in Conjunction with GST 2012, Proceedings",
note = "2012 Int. Conf. on SecTech 2012, 2012 Int. Conf. on Control and Automation, CA 2012 and the 2012 Int. Conf. on Circuits, Control, Communication, Electricity, Electronics, Energy, System, Signal and Simulation, Held in Conjunction with GST 2012 ; Conference date: 28-11-2012 Through 02-12-2012",
}