Parallel interference cancellation schemes based on adaptive MMSE detection for DS CDMA systems

... PARALLEL INTERFERENCE CANCELLATION SCHEMES BASED ON ADAPTIVE MMSE DETECTION FOR DS- CDMA SYSTEMS DU LIN (B.Eng., Xi’an Jiaotong University) A THESIS SUBMITTED FOR THE DEGREE OF ... CHAPTER DS- CDMA SYSTEMS 2.1 System Model for DS- CDMA 2.2 Spreading Codes 12 2.3 Conventional Detector for DS- CDMA Systems 13 2.4 Concluding Remarks 18 CHAPTER OVERVIEW...

Ngày tải lên: 28/11/2015, 13:26

... Zarifi and A B Gershman, Performance analysis of subspace-based signature waveform estimation algorithms for DS-CDMA systems with unknown correlated noise,” in Proceedings of 6th IEEE Workshop on ... user signature vectors are orthogonal, the simplified versions of these expressions have been also obtained for the high SNR regime The effect of the correlated...

Ngày tải lên: 22/06/2014, 23:20

... bandwidth of MT -CDMA is comparable with that of DS- CDMA scheme Table 2.1 Features of various CDMA systems DS- MC -CDMA MC -DS- CDMA MT -CDMA of N N N Processing gain G G G GN TsN / G TsN TsN CDMA Number ... APIC receivers for synchronous MC -DS- CDMA 5.1 BER Performance of various receivers in Rayleigh fading channel at SNR of 20dB for synchronous MC -DS- CDMA 5...

Ngày tải lên: 26/09/2015, 11:07

... responses after crosstalk cancellation Figure 7: Impulse responses of crosstalk cancellation in the asymmetric case Conclusion This paper investigates crosstalk cancellation for authentic binaural ... the computation cost greatly The paper is organized as follows Conventional crosstalk cancellation methods are introduced in Section Then the proposed crosstalk cancel...

Ngày tải lên: 21/06/2014, 08:20

... trade-off among various localized tree construction schemes with different network parameters in the following section Analysis of Localized Tree Construction Schemes In the last section, we examined ... section, we characterize how diverse network conditions (such as the node density and the network size) affect the energy consumption of each localized tree constructi...

Ngày tải lên: 21/06/2014, 17:20

... the interferences without any reduction of the transmission rate, while they somewhat increase the complexity of the receiver 4.1 Interblock interference cancellation In the block transmission schemes, ... proposed interference cancellation schemes can significantly improve bit error rate (BER) performance of the SC-CP system with the insufficient GI, and especially, the propo...

Ngày tải lên: 22/06/2014, 19:20

... UL PIC: System Simulations and Prototype Field Trials [8] T Suzuki, Y Takeuchi, F Watanabe, and S Niida, “Implementation and field test result of a base station canceling CDMA interference for ... statistics, and so forth—in different parts of the cell Each of these channel characteristics is described by physical parameters WCDMA UL PIC: System Simulations and Prototyp...

Ngày tải lên: 23/06/2014, 01:20

... propose the improved successive interference cancellation (ISIC) scheme that is comprised of a selective parallel interference cancellation (PIC) integrated into a successive interference cancellation ... PIC and cross correlation SICRM 4.12 Pipelined Successive Interference Cancellation (PSIC) with “pipelines” 4.13 NMB and NAB comparison between SIC and PS...

Ngày tải lên: 09/10/2015, 11:18

... STBC and DSTBC schemes for three transmit antennas 2.8 The BER performance comparison of STBC and DSTBC schemes for four transmit antennas 3.1 Linear filter for MMSE 3.2 Linear filter model for ... STBC MMSE and LSE-RLS schemes for multirate multiuser systems using 8PSK and QPSK Modulations 4.11 The BER performance of STBC MMSE and LSE-RLS schemes for multirate...

Ngày tải lên: 08/11/2015, 16:39

... operations, ocean bottom monitoring stations, remote mine hunting and underwater structure inspections have driven the need for underwater wireless communications Sound transmission is the single ... fading and long delay channels, Heo [30] proposed channel estimate based tap initialization and sparse equalization to hasten the convergence process This result in faster initial and nomi...

Ngày tải lên: 26/11/2015, 13:03

... Uludag et al ˘ Detection of low molecular mass analytes Target & monomers complex -T arget + Target Fig Schematic representation of molecular imprinting Monomers and target Polymerisation practical ... Proceedings of the SPIE Photonics East Conference, Volume 207 Boston, MA Brown MJ, Hillman AR, Martin SJ, Cernosek RW & Bandey HL (2000) Manipulation of electroactive Detec...

Ngày tải lên: 23/03/2014, 07:20

... The Tien Synthesize and investigate the catalytic activity of three-way catalysts based on mixed metal oxides for the treatment of exhaust gases from internal combustion engine CONTENT OF THESIS ... Nguyen The Tien 18 Synthesize and investigate the catalytic activity of three-way catalysts based on mixed metal ox...

Ngày tải lên: 12/05/2014, 17:14

... algorithm and a statistical classifier were used to recognize mental tasks, such as "relax", imagination of "left" and "right" hand (or arm) movements, "cube rotation", "subtraction", and "word association", ... ones After such feature extraction, the system has information enough to make decisions (classify) and generate the necessary control actions to be delivered to the el...

Ngày tải lên: 19/06/2014, 10:20

... [18] P Mach and Z Becvar, “Dynamic power control procedure for femtocells based on frame utilization, ” in Proceedings of the International Conference on Wireless and Mobile Communication (ICWMC ... sections The last section gives our conclusions Related Works The power control mechanism may be implemented either in an uplink or in a downlink direction In t...

Ngày tải lên: 21/06/2014, 05:20

... at home This requires that the routing algorithm be able to self-adapt to link instability Using wireless sensor networks in home automation is prevalent and cost effective A routing algorithm for ... transmission, in this paper we present a new routing algorithm for WSNHA, namely, WSNHA-LBAR (location-based selfadaptive routing for WSNHA) Instead of using flo...

Ngày tải lên: 21/06/2014, 05:20