2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04.最新文献_第8页

Performance analysis of a correlator based maximum likelihood frequency estimator 基于相关器的最大似然频率估计器的性能分析

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. Pub Date : 2004-12-11 DOI: 10.1109/SPCOM.2004.1458379

S. Kandeepan, S. Reisenfeld

引用次数: 10

Bounds on MMSE multiuser detection for CDMA CDMA中MMSE多用户检测的边界

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. Pub Date : 2004-12-11 DOI: 10.1109/SPCOM.2004.1458365

A. Kohli, D. K. Mehra

引用次数: 0

Performance of transmit diversity scheme with quantized phase-only feedback 量化纯相位反馈发射分集方案的性能

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. Pub Date : 2004-12-11 DOI: 10.1109/SPCOM.2004.1458393

J. Klutto Milleth, K. Giridhar, D. Jalihal

引用次数: 14

Computationally efficient blind multiuser detection for multipath CDMA channels 计算高效的多径CDMA信道盲多用户检测

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. Pub Date : 2004-12-11 DOI: 10.1109/SPCOM.2004.1458368

C. K. Ali, E. Gopinathan

{"title":"Computationally efficient blind multiuser detection for multipath CDMA channels","authors":"C. K. Ali, E. Gopinathan","doi":"10.1109/SPCOM.2004.1458368","DOIUrl":"https://doi.org/10.1109/SPCOM.2004.1458368","url":null,"abstract":"In this paper a blind, adaptive minimum mean squared error (MMSE) receiver, which jointly performs data detection and channel estimation for multipath CDMA channels, is considered. The receiver is implemented using the constrained minimum output energy (MOE) criterion and the least mean square (LMS) algorithm. The computational complexity of the proposed receiver is only of order N (O(N)) per symbol, where N is the processing gain. The proposed receiver requires only the signature code of the user of interest (UOI) and does not require any training sequences, the channel parameters of any users and signature codes of the interfering users (Timing information is assumed to be known by the receiver). Though the channel parameters of the UOI are not explicitly calculated, the energies of multiple paths are advantageously combined as done in a conventional RAKE receiver. Here multiple access interference (MAI) is first removed and SNR is subsequently maximized using the min-max principle. The bit-error performance of the proposed receiver closely approaches that of the non-blind, non-adaptive MMSE detector. We are also introducing a blind, adaptive, decorrelating receiver, which can be obtained even when noise is zero.","PeriodicalId":424981,"journal":{"name":"2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04.","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125240574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An alternative representation of speech using the modified group delay feature 使用修改后的群延迟特征的语音替代表示

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. Pub Date : 2004-12-11 DOI: 10.1109/SPCOM.2004.1458402

R.M. Hedge, H. Murthy

引用次数: 2

Using rate matching attributes for differentiated QoS in UMTS networks 在UMTS网络中使用速率匹配属性实现差异化QoS

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. Pub Date : 2004-12-11 DOI: 10.1109/SPCOM.2004.1458493

R. Karthik, J. Kuri

引用次数: 0

Continuous waveforms from a binary modulator 二进制调制器的连续波形

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. Pub Date : 2004-12-11 DOI: 10.1109/SPCOM.2004.1458497

Jagadish Venkataraman, O. Collins

引用次数: 3

Low-computation and high-performance adaptive full search block-matching motion estimation 低计算和高性能自适应全搜索块匹配运动估计

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. Pub Date : 2004-12-11 DOI: 10.1109/SPCOM.2004.1458413

V. Reddy, S. Sengupta

引用次数: 0

Achieving delay differentiation by scheduling based on optimal balancing of weighted instantaneous and cumulative queue lengths 基于加权瞬时和累积队列长度最优平衡的调度实现延迟分化

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. Pub Date : 2004-12-11 DOI: 10.1109/SPCOM.2004.1458432

A. Chakraborty, U. Mukherji

{"title":"Achieving delay differentiation by scheduling based on optimal balancing of weighted instantaneous and cumulative queue lengths","authors":"A. Chakraborty, U. Mukherji","doi":"10.1109/SPCOM.2004.1458432","DOIUrl":"https://doi.org/10.1109/SPCOM.2004.1458432","url":null,"abstract":"Scheduling policies for statistical multiplexing should provide delay differentiation between different traffic classes, where each class represents an aggregate traffic of individual applications having the same target queueing delay requirements. We propose scheduling to optimally balance weighted queue lengths as an approach to delay differentiation, class weights being set inversely proportional to the respective products of target delays and packet arrival rates. We formulate the problem in the framework of Markov decision theory, assuming a discrete-time, two-class, single-server queueing model with unit service time per packet. We first find a scheduling policy based on weighted instantaneous queue lengths, for the case of Bernoulli packet arrivals, that minimizes the stationary mean of the absolute value of the difference of the weighted instantaneous queue lengths. We then find a scheduling policy based on weighted cumulative queue lengths, for the case of i.i.d. packet batch arrivals, that achieves target mean queueing delays in simulation.","PeriodicalId":424981,"journal":{"name":"2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04.","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2004-12-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130306104","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A class of antenna dynamic selection algorithm based on E/sub b//I/sub 0/ in DWCS DWCS中基于E/sub / b//I/sub 0/的天线动态选择算法

2004 International Conference on Signal Processing and Communications, 2004. SPCOM '04. Pub Date : 2004-12-11 DOI: 10.1109/SPCOM.2004.1458398

Chen Peng, Li Zheng, Wu Wei-ling

引用次数: 1