GLOBECOM '05. IEEE Global Telecommunications Conference, 2005.最新文献_第10页

Beam pointing error of wideband phased array antennas with reduced true-time-delay devices 减少真延时器件的宽带相控阵天线波束指向误差

GLOBECOM '05. IEEE Global Telecommunications Conference, 2005. Pub Date : 2005-09-01 DOI: 10.1109/GLOCOM.2005.1577643

M. Yajima, Takumi Hasegawa

引用次数: 2

Displacement MIMO Kalman equalizer for CDMA downlink in fast fading channels 基于位移MIMO卡尔曼均衡器的CDMA下行快衰落信道

GLOBECOM '05. IEEE Global Telecommunications Conference, 2005. Pub Date : 2005-07-01 DOI: 10.1109/GLOCOM.2005.1578070

Yuanbin Guo, Jianzhong Zhang, D. McCain, Joseph R. Cavallaro

引用次数: 5

Computational complexities of sphere decoding according to initial radius selection schemes and an efficient initial radius reduction scheme 基于初始半径选择方案和一种有效的初始半径缩减方案的球解码计算复杂度

GLOBECOM '05. IEEE Global Telecommunications Conference, 2005. Pub Date : 2005-04-01 DOI: 10.1109/GLOCOM.2005.1578084

Hee Goo Han, S. Oh, Seung Joon Lee, D. Kwon

{"title":"Computational complexities of sphere decoding according to initial radius selection schemes and an efficient initial radius reduction scheme","authors":"Hee Goo Han, S. Oh, Seung Joon Lee, D. Kwon","doi":"10.1109/GLOCOM.2005.1578084","DOIUrl":"https://doi.org/10.1109/GLOCOM.2005.1578084","url":null,"abstract":"We analyze the computational complexity of sphere decoding (SD) for maximum likelihood detection (MLD) according to initial radius selection schemes, and also propose an efficient initial radius reduction scheme that reduces further the initial radius. As the initial radius for SD, we use the Euclidean distance between the received signal vector and the lattice vector corresponding to a suboptimum initial estimate. The proposed initial radius reduction scheme selects a new lattice vector closer to the received signal vector than the initial lattice vector in order to reduce the initial radius further. From our analyses, the reduction in the overall complexity due to further reduction of initial radius gets more significant as the SNR decreases. The ZF-DFE scheme in a combination with the proposed radius reduction scheme has the fewest computations over practical SNR range for communications, and its computations are less than that of the vertical Bell-labs layered space-time (V-BLAST) detection scheme with optimal ordering, even at low SNR values achieving an uncoded bit error rate (BER) of 0.1","PeriodicalId":319736,"journal":{"name":"GLOBECOM '05. IEEE Global Telecommunications Conference, 2005.","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2005-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131112752","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: 9

Traffic grooming in WDM/SONET BLSR rings with multiple line speeds 具有多种线路速度的WDM/SONET BLSR环中的流量疏导

GLOBECOM '05. IEEE Global Telecommunications Conference, 2005. Pub Date : 2005-03-13 DOI: 10.1109/GLOCOM.2005.1578034

Huan Liu, F. Tobagi

引用次数: 13

Optimizing network resource sharing in grids 优化网格中的网络资源共享

GLOBECOM '05. IEEE Global Telecommunications Conference, 2005. Pub Date : 2005-03-01 DOI: 10.1109/GLOCOM.2005.1577756

L. Marchal, P. Primet, Y. Robert, J. Zeng

引用次数: 19

Locally optimum detection performance analysis for narrowband interference rejection in spread spectrum communications 扩频通信窄带抑制局部最优检测性能分析

GLOBECOM '05. IEEE Global Telecommunications Conference, 2005. Pub Date : 1900-01-01 DOI: 10.1109/GLOCOM.2005.1577462

A. Roy, J. Doherty

引用次数: 2

Parallel distributed detection for wireless sensor networks: performance analysis and design 无线传感器网络并行分布式检测:性能分析与设计

GLOBECOM '05. IEEE Global Telecommunications Conference, 2005. Pub Date : 1900-01-01 DOI: 10.1109/GLOCOM.2005.1578097

I. Bahceci, G. Al-Regib, Y. Altunbasak

引用次数: 25

Applying speculative technique to improve TCP throughput over lossy links 应用推测技术提高TCP在有损链路上的吞吐量

GLOBECOM '05. IEEE Global Telecommunications Conference, 2005. Pub Date : 1900-01-01 DOI: 10.1109/GLOCOM.2005.1578457

H. Bai, D. Lija, Mohammed Atiquzzaman

{"title":"Applying speculative technique to improve TCP throughput over lossy links","authors":"H. Bai, D. Lija, Mohammed Atiquzzaman","doi":"10.1109/GLOCOM.2005.1578457","DOIUrl":"https://doi.org/10.1109/GLOCOM.2005.1578457","url":null,"abstract":"The throughput degradation of transport control protocol (TCP) over lossy links due to the coexistence of congestion losses and link corruption losses is very similar to the degradation of processor performance due to control hazards in CPU design. First, two types of loss events in networks with lossy links can be considered as two possibilities of a branching result (correct speculation vs. incorrect speculation) in a CPU. Secondly, both problems result in performance degradations in their application environments, i.e., penalties (in clock cycles) in a processor, and throughput degradation (in bit per second) in TCP networks. This has motivated us to apply speculative techniques (i.e., speculating on the outcome of branch predictions), used to overcome control dependencies in a processor, to TCP improvements when lossy links are involved in TCP connections. The objective of this paper is to propose a protocol-level speculation based TCP modification to improve its throughput over lossy links. Simulation results show that, compared to other prior research, our proposed algorithm significantly improves TCP throughput in a network with satellite links","PeriodicalId":319736,"journal":{"name":"GLOBECOM '05. IEEE Global Telecommunications Conference, 2005.","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116803044","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: 5

Energy and throughput tradeoff in wireless networks with processing energy considerations 考虑处理能量的无线网络中的能量和吞吐量权衡

GLOBECOM '05. IEEE Global Telecommunications Conference, 2005. Pub Date : 1900-01-01 DOI: 10.1109/GLOCOM.2005.1578216

Lillian L. Dai, V. Chan

{"title":"Energy and throughput tradeoff in wireless networks with processing energy considerations","authors":"Lillian L. Dai, V. Chan","doi":"10.1109/GLOCOM.2005.1578216","DOIUrl":"https://doi.org/10.1109/GLOCOM.2005.1578216","url":null,"abstract":"Many wireless network studies pertain to the derivation of throughput bounds and cross-layer optimization for energy conservation. From a practical perspective, often a network must meet the competing objective of attaining high throughput while conserving energy for prolonged operation. The tradeoff between these two important network metrics has not been adequately addressed in the literature. A further deficiency in existing research lies in the suppression of non-distance-dependent processing energy in energy models, which can lead erroneously to routing on paths with large number of hops. We model processing energy explicitly, and show that for a particular implementation of wireless network, the average path power is a monotonically increasing, piecewise linear function of throughput. Furthermore, we quantify a network region size threshold such that in a small region relative to the threshold, direct transmission routing is both energy conserving and throughput achieving. For larger regions, path power optimal routing may not achieve the maximum throughput. Higher throughput may be achieved with suboptimal routing schemes that lead to higher marginal power increase as the throughput increases","PeriodicalId":319736,"journal":{"name":"GLOBECOM '05. IEEE Global Telecommunications Conference, 2005.","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116974108","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: 5

Enhanced multi-layer protection in multi-service GMPLS networks 增强多业务GMPLS网络的多层保护

GLOBECOM '05. IEEE Global Telecommunications Conference, 2005. Pub Date : 1900-01-01 DOI: 10.1109/GLOCOM.2005.1577635

A. Urra, E. Calle, J. Marzo

引用次数: 14