relaying multi hop and cooperative communications

Báo cáo hóa học: "Energy consumption and lifetime analysis in clustered multi-hop wireless sensor networks using the probabilistic cluster-head selection method" pdf

Ngày tải lên : 20/06/2014, 22:20

... higher (lower), and thus the real number of hops between the nodes may be larger than (close to) the theoretical value Choi and Lee EURASIP Journal on Wireless Communications and Networking 2011, ... derive C(p) and find the optimal probability p* A new energy model for clustered multi- hop WSNs 4.1 Energy consumption model 4.1.1 Total number of hops between the cluster-heads and the sink ... to cluster(1) and are located in a ring-shaped area whose the inner radius is a and the outer radius is b Then, we have Choi and Lee EURASIP Journal on Wireless Communications and Networking...

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Báo cáo hóa học: " Research Article Analysis and Construction of Full-Diversity Joint Network-LDPC Codes for Cooperative Communications" pdf

Ngày tải lên : 21/06/2014, 17:20

... block fading channel [22].) S1 transmits 1i1 and 1p1 , S2 transmits 1i2 and 1p2 , and the common relay ﬁrst transmits 2i1 and 2p1 and then transmits 2i2 and 2p2 , hence the level of cooperation is ... Journal on Wireless Communications and Networking r1 and r2 should be equal, that is, all users in the network transmit at the same rate In this case, (21) and (19) are equivalent and it is suﬃcient ... sources S1 and S2 transmit information bits and parity bits that are related to their own information, and R transmits information bits and parity bits related to the information from S1 and S2 ...

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Báo cáo hóa học: "Research Article Dynamic Resource Assignment and Cooperative Relaying in Cellular Networks: Concept and Performance Assessment" pot

Ngày tải lên : 21/06/2014, 23:20

... resource assignment, flow control for multihop connections and cooperative relaying as an add-on to single-path relaying 4.1 Dynamic Resource Assignment A fixed and static resource assignment will ... maximum of two hops The CbS is a resource request and allocation strategy proposed in [24] for controlling the resources and delays of multihop communications with different numbers of hops Each RS ... band and the upper Industry Science and Medical (ISM, 5.725–5.825) band 12 EURASIP Journal on Wireless Communications and Networking Table 5: WINNER OFDMA parameters for Downlink [36] Mode Bandwidth...

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Báo cáo hóa học: " A Novel Cluster-Based Cooperative MIMO Scheme for Multi-Hop Wireless Sensor Networks" ppt

Ngày tải lên : 22/06/2014, 22:20

... performance compared to the multi- hop LEACH scheme and the proposed MIMO LEACH scheme The reason is that the multi- hop operation in the multi- hop LEACH scheme and the multihop MIMO-LEACH scheme will ... protocol, the multi- hop LEACH scheme, and the proposed multi- hop MIMO-LEACH scheme is about 0.7 × 104 , 8.2 × 104 , and 11 × 104 s The improvement on network lifetime obtained by the multi- Hop MIMO-LEACH ... the multi- hop MIMO-LEACH scheme can transmit much more data packets compared to the LEACH protocol and the multi- hop LEACH scheme From these simulation results, we can ﬁnd that the multihop...

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cooperative communications (foundations and trends in networking)

Ngày tải lên : 03/07/2014, 16:05

... Leandros Tassiulas Computer Engineering and Telecommunications Dept University of Thessaly Volos, Greece leandros@uth.gr Boston – Delft Foundations and Trends R in Networking Published, sold and ... transmission scheduling in MIMO systems, and work in [118] considers routing in multi- hop networks with unreliable channels and multi- receiver diversity Stability and Network Capacity Here we establish ... deﬁnition and discussion of the various layers associated with the standard layer Open Systems Interconnection (OSI) networking model, including the transport, network, and physical layers, and the multiple...

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efficient traffic diversion and load-balancing in multi-hop wireless mesh networks

Ngày tải lên : 30/10/2014, 20:08

... devices and weak security mechanism The IEEE 802.11 family of protocols standardizes WLAN technology and includes the three well known standards: 802.11a, 802.11b, and 802.11g These standards ... communicate with IGWs and with each other using a multi- hop communication paradigm, thus forming a multi- hop wireless mesh backbone network The MRs organize autonomously and are self-healing, ... Unfairness in Multi- hop Wireless Mesh Networks In a multi- hop WMN, packets originated from MRs with larger number of hops experience poor performance compared to those from MRs with fewer hops (spatial...

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[FULL] Cooperative communications and networking by K.J.Ray liu, Ahmed K.Sadek, Weifeng Su and Andres Kwasinski

Ngày tải lên : 25/01/2016, 13:04

... wireless communications, space–time diversity and coding, and broadband space–time–frequency diversity and coding Part II then goes on to present topics on physical layer cooperative communications, ... interests are in the areas of multimedia wireless communications, cross layer designs, digital signal processing, and speech and video processing Cooperative Communications and Networking K J R A Y ... focuses on cooperative networking including cooperative and content–aware multiple access, distributed routing, source– channel coding, source–channel diversity, coverage expansion, broadband cooperative...

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Data And Computer Communications

Ngày tải lên : 13/09/2012, 10:21

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Multi-Carrier and Spread Spectrum Systems

Ngày tải lên : 02/03/2013, 16:58

... Multi- Carrier and Spread Spectrum Systems K Fazel Marconi Communications GmbH Germany and S Kaiser German Aerospace Center (DLR) Germany Multi- Carrier and Spread Spectrum Systems Multi- Carrier ... is very important to understand the multi- carrier spread spectrum methods Hybrid multiple access schemes like Multi- Carrier FDMA, Multi- Carrier TDMA, and Ultra Wide Band systems are discussed as ... efﬁciency, simple and robust detection techniques and narrow band interference rejection capability Multi- carrier modulation and multi- carrier spread spectrum are today considered potential candidates...

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A comparative analysis of institutions, national policies, and cooperative responses to floods in Asia

Ngày tải lên : 22/10/2013, 10:15

... social and ecological resilience and for guiding individual and collective behavior Sixth is the existing gap between the declared goals and mission of institutions, on the one hand, and results ... national policies and cooperative responses to floods risk reduction Compare national institutions in the countries of Asia and identify common and specific problems in policies and measures implementation ... and compares national and regional institutional regimes, policies and measures to protect (including preparedness, emergency response and rehabilitation) from destructive effects of floods and...

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Our Guidelines to Email and SMS Communications potx

Ngày tải lên : 07/03/2014, 10:20

... Email and SMS Communications is to help you understand the types of electronic communications we may send you, what you can expect these to contain, and most importantly to help you to identify and ... information regarding fees and charges and terms and conditions in relation to ANZ products or services • Text messages reminding you to deposit funds into your account to avoid fees and charges; Operational ... marketing communications There are a number of ways you can opt out of receiving marketing communications Marketing communication channel How to opt-out of marketing communications Email marketing communications...

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Banks’ regulatory capital buffer and the business cycle: evidence for German savings and cooperative banks pot

Ngày tải lên : 15/03/2014, 09:20

... decisions, i.e., supply-side effects, and demand-side effects working through loan demand As loan demand is known to fluctuate procyclically over the business cycle, demand-side effects may also lead ... small- and medium-sized enterprises (the “Mittelstand”), which have limited access to external capital markets As the small- and medium-sized enterprises borrow mainly from local savings and cooperative ... differences between savings and cooperative banks dySB is unity if the bank is a savings bank and zero otherwise (cooperative bank) As the banking theory suggests that capital and risk may be simultaneously...

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Savings and Cooperative banks: Social Approach to Credit Rationing docx

Ngày tải lên : 22/03/2014, 21:20

... between notional demand (all demand in economy for bank credit) and effective demand (demand of borrowers considered creditworthy) Banks produce credit in response to the effective demand, while the ... factors are specific to savings and cooperative banks and thus can be considered as intrinsic forms of competitive advantage In the new environment where savings and cooperative banks have become ... for their “close local and regional ties and proximity, the will and vocation for socially responsible behaviour and a comprehensive range of financial services for private and corporate customers...

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Which interest rate scenario is the worst one for a bank? Evidence from a tracking bank approach for German savings and cooperative banks potx

Ngày tải lên : 22/03/2014, 23:20

... composition of its assets and liabilities, called 'tracking bank' We evaluate the eect of 260 historical interest rate shocks on the tracking banks of German savings banks and cooperative banks It ... of the author and need not reect the opinions of the Deutsche Bundesbank I thank Oliver Entrop, Barry Williams and the participants at the Deutsche Bundesbank's research seminar and the SGF 2008 ... For more information on the Bundesbank's banking data see Memmel and Stein (2008) talks with practitioners of the savings banks and cooperative banks sector, we know 11 From that the average duration...

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The MIT Guide to Science and Engineering Communicationsecond edition pdf

Ngày tải lên : 28/03/2014, 17:20

... Writing and Work 13 Writing and the Work of Science and Engineering The work of science and engineering is recorded and disseminated in a variety of communication forms, both written and oral ... vii Part I Writing and Work Collaborative Writing Your Audience and Aims Organizing and Drafting Documents Revising for Organization and Style Developing Graphics Design of Page and Screen Searching ... software and hardware are constantly making group work more productive Calendar and scheduling programs, e-mail and messaging systems, and group-authoring tools all support document distribution and...

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labview digital signal processing and digital communications

Ngày tải lên : 01/06/2014, 10:25

... in use today and each of them has its own unique frequency band, signaling format, and multiple access method These systems are becoming so ubiquitous that every company involved in communications ... Spectral translation Digital Communications and LabVIEW multiples of 2π, leaving no guard band at all In Fig 1.4c, the sample rate has now crossed a threshold and is actually violating the Nyquist ... Stockmaster, J B Y Tsui, and J Caschera, “Direct Bandpass Sampling of Multiple Distinct RF Signals,” IEEE Transactions on Communications, vol 47, pp 983–988, July 1999 Liu, J., X Zhou, and Y Peng, “Spectral...

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Data and computer communications 8e williamstallings

Ngày tải lên : 05/06/2014, 07:58

... Internet and Web Resources 0.4 Standards PART ONE OVERVIEW Chapter Data Communications, Data Networking, and the Internet 10 1.1 Data Communications and Networking for Today’s Enterprise 12 1.2 A Communications ... designs: • Fundamentals of Data Communications: Parts One (overview) and Two (data communications) and Chapters 10 and 11 (circuit switching, packet switching, and ATM) • Communications Networks: If ... Five and Six 11 12 CHAPTER / DATA COMMUNICATIONS, DATA NETWORKS, AND THE INTERNET 1.1 DATA COMMUNICATIONS AND NETWORKING FOR TODAY’S ENTERPRISE Effective and efficient data communication and networking...

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Báo cáo hóa học: " Hidden node aware routing method using highsensitive sensing device for multi-hop wireless mesh network" docx

Ngày tải lên : 20/06/2014, 22:20

... flow and multi- flow interference caused by the hidden node in the multi- hop network In this paper we classify the interference due to the hidden node into two types: self flow interference and multi- flow ... its previous nodes it can be a candidate for the next hop node of the route Let Pcand denote the probability of the candidate node that can be select as the next hop of the route In our proposed ... busy, self flow and multi- flow collisions occur due to the presence of the hidden node The proposed method with -62 Parvin and Fujii EURASIP Journal on Wireless Communications and Networking 2011,...

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