advantages over other systems

... Description Codes over OFDM SIMULATION RESULTS In this section, we provide computer simulation results to illustrate the performance of the turbo receiver for MDSQ over diversity OFDM systems In the ... extrinsic information with other component in the above turbo receiver, and successively improving the overall receiver performance Finally, we have also treated channel-coded systems, and a novel ... of exchanging the so-called extrinsic information with the other component in the above turbo receiver, successively improving the overall receiver performance For a practical communication system,...

Ngày tải lên: 23/06/2014, 00:20

... its interaction with the proteome On the other hand, there are other key proteins with many connections to the proteome (Ubp10 and Mpe1), but not with other Ub/Ubl pathway components In addition, ... [79].Consistent with this proposal, all these genes were recovered as interacting with Slx5Slx8 in our PMI network Moreover, we also identified several other genes as part of this densely connected subgraph ... capture the strongly interconnected elements shared between distinct biological subsystems The MCL method [50] on the other hand restricts a protein to a single cluster, thereby bringing out the strongest...

Ngày tải lên: 14/08/2014, 21:20

... IMS Multimedia Telephony over Cellular Systems IMS Multimedia Telephony over Cellular Systems VoIP Evolution in a Converged Telecommunication World Edited ... solutions for interworking with legacy systems Most of these things are not unique for HSPA or other cellular systems CHAPTER INTRODUCTION but rather generic for all IP systems The last section in this ... switched radio bearer suffered from significantly larger overhead than the CS radio bearer (the LLC and SNDCP overhead) Therefore, the coverage radius of the packet switched voice was significantly...

Ngày tải lên: 27/10/2014, 01:05

... ndm-requester 1363/tcp Network DataMover Requester ndm-requester 1363/udp Network DataMover Requester ndm-server 1364/tcp Network DataMover Server ndm-server 1364/udp Network DataMover Server # Toshio Watanabe ... chunks for transmission) When the fragments are reassembled at the other end into a complete packet, it overflows the buffer on some systems, causing a reboot, panic 22 or hang, but sometimes even ... information in section 5.4 below Ethernet was designed to carry other traffic than just TCP/IP, and TCP/IP was designed to run over other wires (such as dial-up lines, which use no Ethernet) For...

Ngày tải lên: 18/01/2014, 06:20

... accessed by lemmas (normal forms) Coded dictionaries of CAT systems, on the other hand, are accessed by morphs or by lexical units Moreover, the information the two types of dictionaries contain ... lead to "word senses" - Grafting on expert systems Seeing that linguistic expertise is already quite well represented and handled in current ("closed") systems, we are orienting our research towards ... (knowledge about some technical or scientific field, for instance) to existing CAT systems Also, because current systems are based on transducers rather than on analyzers, it is perfectly possible...

Ngày tải lên: 08/03/2014, 18:20

... minimum index is found over Sichuan and eastern Yunnan, but the indices increase again further west to another maximum over southern Tibet This implies that the minimum over Sichuan and Yunnan ... exists, which is about the highest level it could attain Even the surface winds over the Tibet Plateau in West China are governed by the heat low during the summer season.During winter as a whole, ... from the directional variation of the monsoon, another distinctive property is the different nature of the summer and winter monsoons which is governed by their origin Due to its origin from mid-Siberia...

Ngày tải lên: 21/03/2014, 21:57

... Xan Relevance to other enzyme systems The pKa values, and unique structures of the monoanions of Xao and Xan, as well as of XMP [12], are of equal relevance in other enzyme systems, for which ... referred to above, which exhibits a marked preference for Xao, as well as to a number of other enzyme systems, discussed below MATERIALS AND METHODS Materials Purine nucleoside phosphorylase ... York Stoeckler, J.D (1984) Purine nucleoside phosphorylase: a target for chemotherapy In Developments in Cancer Chemotherapy (Glazer, R.I., ed.), pp 35–60 CRC Press, Boca Raton Bzowska, A., Kulikowska,...

Ngày tải lên: 31/03/2014, 09:20

... amplify-and-forward relay systems IEEE Trans Wirel Commun 9(3), 1139–1149 (2010) 23 K Yamamoto, A Kusuda, S Yoshida, Impact of shadowing correlation on coverage of multihop cellular systems, in IEEE International ... thoughput analysis for multihop relaying in cellular systems IEEE Trans Veh Technol 58(8), 4514–4528 (2009) A Fujiwara, S Takeda, H Yoshino, T Otsu, Area coverage and capacity enhancement by multihop ... doi:10.1109/TIT.2004.838089 MO Hasna, M-S Alouini, End-to-end performance of transmission systems with relays over Rayleigh-fading channels IEEE Trans Wirel Commun 2(6), 1126–1131 (2003) doi:10.1109/TWC.2003.819030...

Ngày tải lên: 21/06/2014, 02:20

... DS/SFH-CDMA systems for overlay systems, ” IEEE Transactions on Wireless Communications, vol 1, no 3, pp 448–455, 2002 S Kondo and L B Milstein, “Performance of mMulticarrier DS CDNA systems, ” IEEE ... will destruct the orthogonality and is not feasible for MCCDMA systems The frequency-domain channel-estimation methods in the MC-CDMA systems will fail if the channel contains colored noise It is ... (k − P), are unavailable The other is that the parameter estimation in (19) is in block form, which is not suitable for realtime design in the MC-CDMA communication systems A (21) It, of course,...

Ngày tải lên: 21/06/2014, 08:20

... (k), the optimal assignment is obtained Otherwise, go to the next step Step Let Q be a vertex cover of G , and let R = X ∩ Q and T = Y ∩ Q The vertex cover Q is a vertex set of G which contains ... can be allocated subcarrier resources; otherwise, it continues to wait Even with access control, real-time transmission systems may still encounter an overloaded situation due to the timevarying ... the links recover However, all these scheduling algorithms are based on packet scheduling, and multiple frequency subcarrier scheduling, which may be implemented in multiuser OFDM systems, is...

Ngày tải lên: 21/06/2014, 20:20

... 2 the worlds of conventional relaying and multiple-antenna systems The advantages of the cooperative diversity protocols come at the expense of a reduction in the ... performance for the best-relay selection scheme over Rayleigh fading channels Figure 3: Outage performance for path the best-relay selection scheme over Rayleigh fading channels of the computer ... technique REFERENCES [1] M O Hasna and M.-S Alouini, “End-to-end performance of transmission systems with relays over Rayleigh-fading channels,” IEEE Transactions on Wireless Communications, vol 2, no...

Ngày tải lên: 21/06/2014, 22:20

... FHSS systems, the PEP in (6) is a function of the distribution of the d nonzero bits over the J hops This distribution is quantified assuming uniform channel interleaving of the coded bits over ... ⎝ ⎞ jv w v v=1 i=1 ⎟ ζi ⎟ ⎠ (33) Averaging (33) over the fading amplitudes and the number of interfering users, the PEP of coded FHSS systems over Rician fading channels with imperfect CSI is ... Q bands and users transmit their data by hopping randomly from one band to another When more than one user transmit over the same band simultaneously, a hit (or collision) occurs Throughout this...

Ngày tải lên: 21/06/2014, 23:20

... asynchronous cellular systems Ng N(OFDM symbol) G=S CP G CP (a) Conventional OFDM signal S (b) Proposed OFDM signal Figure 3: The concept of signal power reduction OFDM systems Since the CP itself ... from other BSs is reduced in the presence of symbol timing misalignment between the transceivers in this asynchronous cellular system (In an OFDM-based synchronous cellular system, on the other ... cellular systems OCI power reduction ratio (Γ) (dB) Figure depicts the amount of OCI power reduction according to the values of η and β It can be seen that the gain of the proposed scheme over the...

Ngày tải lên: 22/06/2014, 19:20

... oscillator (NCO) CONVENTIONAL TIMING RECOVERY SCHEME In a first instance, this section describes the conventional timing recovery mechanism employed in DMT systems that operate in LTI channels To ... of the cyclic changes in the channel over the outputs of the phase estimator and the loop filter is identified and the performance of the overall timing recovery scheme is assessed 3.1 Description ... employed over the 24 measured channels Qualitative results over the example channel shown in Figures and are firstly presented Throughout the work, the following system parameters apply unless otherwise...

Ngày tải lên: 22/06/2014, 20:20

... practice, systems are a combination of both Nevertheless, an important distinction can be made between systems with deterministic scheduling whose operators are mainly transformation-oriented, and systems ... slightly increases the overall complexity This approach ensures fast prototyping of digital signal applications over heterogeneous parallel architectures in many technological fields Other applications ... similar scheme (Figure 9) has already been tested on different configurations: LAR over MC-CDMA, MPEG-4 over MCCDMA, and LAR over UMTS The complex MPEG-4 + UMTS application stresses that a multilayer...

Ngày tải lên: 22/06/2014, 23:20

... adaptive wireless systems, as well as wideband, broadband, and ultra-wideband code-division multiple access (CDMA) for advanced wireless mobile communication systems He has published over 90 papers ... often over a wide dynamic range when roaming in urban and suburban areas [25] Therefore, the number of resolvable paths at the receiver can be modelled as a random variable distributed over a ... analysis in this contribution can be extended to W-CDMA systems using U transmitter antennas and more than one receiver antenna, or to W-CDMA systems using complex-valued data symbols as well as...

Ngày tải lên: 23/06/2014, 00:20

... geometry of dimension d − over finite field q The vertices of P G(q, d) correspond to the equivalence classes of the set of all non-zero vectors x = (x1 , , xd ) over q , where two vectors ... Bolyai Society Mathematical Studies X, pp 1–64 [3] A Iosevich and S Senger, Orthogonal systems in vector spaces over finite fields, preprint (2008), arXiv:0807.0592 the electronic journal of combinatorics ... vectors x = (x1 , , xd ) over q , where two vectors are equivalent if one is a multiple of the other by an element of the field Let GP (q, d) denote the graph whose vertices are the points of...

Ngày tải lên: 07/08/2014, 15:22

... −1 s∈Fq x1 ,x2 ∈Fd q = I2 + II2 , where I2 is the sum over s = 0, and II2 is the same sum, but over s = We will show that I2 dominates the other term when |E| satisfies the size condition, and ... of vector spaces over finite fields, Analysis Mathematika, 34, (2007) [7] D Hart, A Iosevich, D Koh and M Rudnev Averages over hyperplanes, sum-product theory in vector spaces over finite fields ... Combinatorics Cambridge University Press, 2006 [15] Le Anh Vinh, On the number of orthogonal systems in vector spaces over finite fields, Electronic Journal of Combinatorics, 15(1) (2008) N32 [16] T Ziegler,...

Ngày tải lên: 07/08/2014, 21:21

... numbers of ICP increases identified by the digital and the manual systems Numbers of five minute electronic HICP episodes per hour Over the 672 hours, using the digital recording system, we identified ... Overall, the manual percentage of hours of ICP greater than 20 mm Hg was 34% Comparisons between the digital and manual percentages of time spent in which ICP exceeded 20 mm Hg showed that, overall, ... and to adequately rank the severity of HICP, the computerized ICP monitoring shows clinical advantages over manual recording Competing interests The authors declare that they have no competing...

Ngày tải lên: 13/08/2014, 03:20

... hydrogen over Rh and Pt8Sn2 However, steam reforming over the Rh-Sn and Pt9Sn1 catalyst systems favors a reactant mixture with a rich steam composition Oxidative steam reforming over these catalyst systems ... than the other Pt catalyst systems studied Above 250oC, hydrogen selectivity was slightly higher over the Pt8Sn2 system Trends in carbon monoxide 26 selectivity for the different Pt-based systems ... and carbon monoxide production over Pt catalysts was enhanced by the addition of a Sn component On the other hand, carbon dioxide production over Rh catalysts systems was reduced by the presence...

Ngày tải lên: 29/11/2014, 07:13