Báo cáo hóa học: " Research Article Interference Excision in Spread Spectrum Communications Using Adaptive Positive Time-Frequency Analysis" pdf

... rate −10 −8 −6 −4 −20246810 SNR (dB) No interference No excision (single interference) No excision (multiple interference) Single interference excised Multiple interference excised Figure 7: Chip ... used since the sys- tem can suppress the interference partly without interference excision prior to despreading. In systems proposed by other researchers [8], the excision...

Ngày tải lên: 22/06/2014, 19:20

... pages doi:10.1155/2008/125735 Research Article Interference Mitigation in Cooperative SFBC-OFDM D. Sreedhar and A. Chockalingam Department of Electrical Communication Engineering, Indian Institute of Science, ... methods using distributed space-time coding are widely being researched [5, 6]. Recent investigations on cooperative communications focus on space-time cooperative system...

Ngày tải lên: 22/06/2014, 01:20

... starting point is the minority extreme attack introduced in [3]inacontextof non-Gaussian fingerprints. The outline of the paper is as follows. We will introduce our model for fingerprinting in general ... fingerprinting in general and spread spectrum fingerprinting in particular in Section 2. We introduce our new collusion attacks in Section 3, and consider noise attacks in Sect...

Ngày tải lên: 22/06/2014, 00:20

... Sci- ences and Engineering, Shanghai Jiao Tong University, China. His research interests in- clude statistical signal processing, blind sig- nal processing, and machine learning. Liqing Zhang received ... 1997 as a Research Scientist. Since 2002, he has been working in Department of Computer Sciences and Engineering, Shanghai Jiao Tong University, China. His research interests inclu...

Ngày tải lên: 22/06/2014, 23:20

... impact of transmission on link n using resource k to the other cell links, we need to first determine the interference contribution from the links in L s to other cell links. T his is denoted by ... optimal, taking the instantaneous state of all links into account. In practice, not all the interference messages will be heard. Then the decisions will take only local information into a...

Ngày tải lên: 21/06/2014, 05:20

... Intercell interference, therefore, is omnipresent throughout the network and interference man- agement strategies such as intercell interference coordination [8–12] are of utmost importance in ... each relaying scheme. The two-way relaying strategy, for instance, exhibited severe interference enhancement in both the uplink and downlink transmissions. This was not surprising since t...

Ngày tải lên: 21/06/2014, 08:20

... OFDM interfered with by p-UWB in CM3. 3.2. Analysis of the interfering signal in the OFDM receiver In this section, a mechanism for determining the pulse repetition cycle in the proposed interference ... two main aspects of the proposed interference mitigation technique: the APD of the interfering signal after FFT process in the OFDM receiver and varying the interfering power fo...

Ngày tải lên: 21/06/2014, 22:20

... aim at increasing downlink throughput. In this paper, a single antenna interference cancellation (SAIC) algorithm is introduced for amplitude-shift keying (ASK) modulation schemes in combination ... diversity combining in order to exploit receive diversity. The approach introduced in [4] aims at optimizing the receive signal-to -interference- plus-noise ratio (SINR). The authors sh...

Ngày tải lên: 22/06/2014, 06:20

... Publishing Corporation EURASIP Journal on Wireless Communications and Networking Volume 2007, Article ID 62310, 12 pages doi:10.1155/2007/62310 Research Article Frequenc y Estimation in Iterative Interference ... Debbah, G. Gallinaro, R. M ¨ uller, R. Rinaldo, and A. Ver- nucci, Interference mitigation for the reverse-link of inter- active satellite networks,” in Proceedings of...

Ngày tải lên: 22/06/2014, 19:20

... weights taking in consideration the interference due to the in- sufficient GI; (2) the replica signal of the interference is generated taking advantages of the temporal localization nature of the interference. As ... the receiver. In the SC-CP system, only limited number of symbols in a transmitted block cause the interferences, while all the in- formation data contribute to the...

Ngày tải lên: 22/06/2014, 19:20