... D lists legacy IEEE 802.11 WLAN references Appendix E lists legacy IEEE 802.11 WLAN online resources 1-2 GUIDE TO SECURING LEGACY IEEE 802.11 WIRELESS NETWORKS Overview of IEEE 802.11 Wireless ... including IEEE 802.11r, IEEE 802.11k, and IEEE 802.11y A-5 Availability The standard is under development and is expected to be completed and ratified in 20...
Ngày tải lên: 14/02/2014, 08:20
... LTE-ADVANCED AND NEXT GENERATION WIRELESS NETWORKS LTE-ADVANCED AND NEXT GENERATION WIRELESS NETWORKS CHANNEL MODELLING AND PROPAGATION Editors Guillaume de la ... the ITU for IMT-A LTE-Advanced and Next Generation Wireless Networks: Channel Modelling and Propagation, First Edition Edited by Guillaume de la Roche, Andr´ s Alay´ n Glazunov and...
Ngày tải lên: 23/03/2014, 15:20
Báo cáo toán học: " Performance of the audio signals transmission over wireless networks with the channel interleaving considerations" pot
... shows the waveform of the received audio signal with assuming the velocity of the mobility is and 10 mile/h The result of this simulation reveals that the mobility of the transmitter increases the ... the Cr and the MSE of the received audio signals with the channel SNR, respectively These figures reveal that the proposed chaotic interleaver imp...
Ngày tải lên: 20/06/2014, 20:20
Báo cáo hóa học: "Energy consumption and lifetime analysis in clustered multi-hop wireless sensor networks using the probabilistic cluster-head selection method" pdf
... respectively Then, the cluster-heads and the sink node distribute the schedules to their clustered nodes and the cluster-heads in the network, respectively In the case of the cluster-heads, the schedules ... article as: Choi and Lee: Energy consumption and lifetime analysis in clustered multi-hop wireless sensor networks using the probabili...
Ngày tải lên: 20/06/2014, 22:20
Báo cáo hóa học: " Delay-throughput analysis of multi-channel MAC protocols in ad hoc networks" ppt
... Multi-Channel MAC protocols in ad hoc networks Research efforts in the field of access mechanisms for single-channel ad hoc networks have been extensive For example, a multiplicity of single-channel MAC protocols ... G-McMAC clearly outperforms SYN -MAC by offering lower delays in general However, G-McMAC becomes unstable before SYN -MAC and in fact after the s...
Ngày tải lên: 20/06/2014, 22:20
Báo cáo hóa học: " Selective sensing and transmission for multi-channel cognitive radio networks" doc
... al.: Selective sensing and transmission for multi-channel cognitive radio networks EURASIP Journal on Wireless Communications and Networking 2011 2011:7 Submit your manuscript to a journal and ... energy and time for sensing The rest of the article is organized as follows After introducing the system model and problem formulation, the periodic sensing and sele...
Ngày tải lên: 21/06/2014, 03:20
báo cáo hóa học:" Research Article Resource Allocation for the Multiband Relay Channel: A Building Block for Hybrid Wireless Networks" ppt
... where Ps and Pr are the total available power at the source and relay node αi and ζi are the nonnegative power allocation parameters for each orthogonal band at the source and relay node, and m ... bands available from the source and the relay are mutually orthogonal In particular, the situation where, among total k channels, there are m channels available for the...
Ngày tải lên: 21/06/2014, 18:20
báo cáo hóa học:" Performance of the audio signals transmission over wireless networks with the channel interleaving " potx
... shows the waveform of the received audio signal with assuming the velocity of the mobility is and 10 mile/h The result of this simulation reveals that the mobility of the transmitter increases the ... the Cr and the MSE of the received audio signals with the channel SNR, respectively These figures reveal that the proposed chaotic interleaver imp...
Ngày tải lên: 21/06/2014, 20:20
Báo cáo hóa học: " Research Article Channel MAC Protocol for Opportunistic Communication in Ad Hoc Wireless Networks'''' doc
... unsuitable for packet forwarding in a chain network This problem is reduced in Channel MAC due to the channel diversity as shown in both the single chain and multiple chain 14 EURASIP Journal on Advances ... shown in this figure for comparison Endto-end packet delay versus P for both Channel MAC and IEEE 802.11 in single-hop case is shown in Figure In a single-hop...
Ngày tải lên: 21/06/2014, 22:20
Báo cáo hóa học: "Research Article A Cross-Layer Routing Design for Multi-Interface Wireless Mesh Networks" pptx
... F Akyildiz and X Wang, A survey on wireless mesh networks,” IEEE Communications Magazine, vol 43, no 9, pp 22–30, 2005 [3] A Adya, P Bahl, J Padhye, A Wolman, and L Zhou, A multiradio unification ... placed in a 500 m × 500 m area (Figure 7) The simulation parameters are the same as the uniform topology The throughputs are almost similar in these routing protocols at low traffic lo...
Ngày tải lên: 21/06/2014, 23:20
Báo cáo hóa học: " A Novel Cluster-Based Cooperative MIMO Scheme for Multi-Hop Wireless Sensor Networks" ppt
... [2] an equal transmit power allocation scheme is used as the channel state information (CSI) is not available at the transmitter If the average attenuation of the channel for each cooperative ... data as an individual antenna with transmission power Pout jt in the MIMO antenna array In the cooperative MIMO scheme, the transmission delay and channel estimation scheme proposed in...
Ngày tải lên: 22/06/2014, 22:20
Báo cáo hóa học: " H.264 Layered Coded Video over Wireless Networks: Channel Coding and Modulation Constraints" docx
... computer engineering and with distinction He received his M.S and Ph.D degrees from University of Essex, UK, in computer and information networks (2000) and layered image and video wireless transmission ... source and channel rates unchanged As mentioned earlier, the combination of HQAM and turbo coding will add a protection to the HP layer that even the turbo coding...
Ngày tải lên: 22/06/2014, 23:20
efficient traffic diversion and load-balancing in multi-hop wireless mesh networks
... Efficient Traffic Diversion and Load-balancing in Multi-hop Wireless Mesh Networks A Dissertation submitted to the Division of Research and Advanced Studies of the University of Cincinnati In ... Jun and Sichitiu in [25] suggest maintaining a separate queue for each individual source at the intermediate relaying nodes However, maintaining separate queues for indivi...
Ngày tải lên: 30/10/2014, 20:08
A game theoretical model for collaborative protocols in selfish, tariff free, multi hop wireless networks
... routing Local state information is maintained at each node and can be assumed to be always available The local state information contains the cost metric of outgoing links, such as queuing delay, ... monitoring transforming it into a wireless multi- hop game model that can account for packet errors, buffer overflows, packet forwarding, packet acknowledgments and routing informati...
Ngày tải lên: 16/09/2015, 12:42
RECEIVER BASED TIME SYNCHRONIZATION FOR MULTI HOP WIRELESS NETWORKS
... Engineering Thesis Title : Receiver- based Time Synchronization for Multi- Hop Wireless Networks Abstract Time synchronization is a critical piece of software infrastructure in Wireless Sensor Network ... node To achieve this, a time- sync frame is used for our time synchronization Energy Harvesting Time Synchronization (EH-TS) is a receiver- based time...
Ngày tải lên: 02/10/2015, 17:14