High Performance Architecture for IP Based Multihop Networks Essay

High Performance Architecture for IP Based Multihop Networks Essay

Length: 1018 words (2.9 double-spaced pages)

Rating: Strong Essays

Open Document

Essay Preview

High performance Architecture for IP based multihop 802.11 Networks
The concept of a forwarding node, which receives packets from upstream nodes and then transmits these packets to downstream nodes, is a key element of any multihop network, wired or wireless. While high-speed IP router architectures have been extensively studied for wired networks, the concept of a “wireless IP router” has not been addressed so far.

This article provides all the problems and methods for increasing the throughput in multihop networks by changing the MAC layer and enhancing it with IP packet forwarding and routing. In a wireless network packet forwarding involves reception in wireless interface, transfer of packet to IP layer where next hop IP and MAC address is determined using routing lookup. The current 802.11 DCF MAC either receives or transmits a packet but does not forward a packet (receiving and transmitting in the same interface).This paper presents two concepts 1) The packet forwarding is completely done within the network interface card NIC, by combining MAC layers forwarding with next hop address lookup using MPLS( Multiprotocol label switching ) labels. 2) MAC which focus on simultaneous data transfer in corresponding cells, which increases the system throughput.

To perform the next hop lookup, the NIC is improved to store a label switching table which consists of incoming MAC address, label and outgoing MAC address, labels. All the packets having the same route will use the same outgoing MAC address, label. Overheads are eliminated by defining DCMA which combines ACK/RTS packet that is sent to the MAC broadcast address.

Simulation results show 50% reduction in forwarding latency using the DCMA. Three different approaches ...

... middle of paper ...

...nnette M. Wing. Two formal analyses of attack graphs. In Proc.15th IEEE Computer Security Foundations Workshop, pages 49–63, Nova Scotia, Canada, June 2002.
Xiao YuLi. Optimization Algorithms for the Minimum-Cost Satisfiability Problem. PhD thesis, North Carolina State University, Raleigh, North Carolina, 2004.
Yogesh S. Mahajan, Zhaohui Fu, and Sharad Malik. Zchaff2004: An efficient SAT solver. In Lecture Notes in Computer Science SAT 2004 Special Volume, pages 360–375. LNCS 3542, 2004.
Vasco M. Manquinho and Jo ao P. Marques-Silva. Search pruning techniques in SAT-based branch-and-bound algorithmsfor the binate covering problem. IEEE Trans. Computer-Aided Design, 21:505–516, 2002.
Vaibhav Mehta, Constantinos Bartzis, Haifeng Zhu, Edmund Clarke, and Jeannette Wing. Ranking attack graphs. In Proc. Recent Advances in Intrusion Detection (RAID), September 2006.

Need Writing Help?

Get feedback on grammar, clarity, concision and logic instantly.

Check your paper »

Quantifying the End-to-End Delay Performance in Multihop Wireless Networks

- This project uses a window based flow control and rate based scheduling algorithm for multihop wireless networks with fixed-route flows operated under a general interference model with interference degree. The proposed algorithm not only achieves a provable throughput guarantee, but also leads to explicit upper bounds on the end-to-end delay of every flow. The end-to-end delay and throughput bounds are in simple and closed forms, and they explicitly quantify the tradeoff between throughput and delay of every flow....   [tags: multihop wireless, wireless networks, throughput]

Strong Essays
3244 words (9.3 pages)

Offering Anomymity Protection with Anonymous Location-based Efficient Routing Protocol

- ... Anonymous routing protocols are crucial in MANETs to provide secure communications by hiding node identities and preventing traffic analysis attacks from outside observers. Anonymity in MANETs includes identity and location anonymity of data sources (i.e., senders) and destinations (i.e., recipients), as well as route anonymity. “Identity and location anonymity of sources and destinations” means it is hard if possible for other nodes to obtain the real identities and exact locations of the sources and destinations....   [tags: broadcast, routing, manet]

Strong Essays
1949 words (5.6 pages)

Performance Management At A High Level Essay

- Performance is how well an individual completes a given task by taking into considerations items such as accuracy, timing, attitude, and completeness. In an organization, the manager should want the employees to be performing at a high level in order for the individual to meet or exceed the company expectations, but without a performance management system, the management would not be able to accurately make that distinction. With that being said, a manager cannot determine an individual’s level of performance without utilizing some type of performance management system....   [tags: Employment, Management, Performance management]

Strong Essays
721 words (2.1 pages)

Essay on High Performance Work Organizations

- High Performance Work Organizations Since the Secretary's Commission on Achieving Necessary Skills (SCANS) issued its report in 1991, organizations have been urged to become "high performance workplaces" and vocational educators are considering how best to prepare workers for them. What are high performance work organizations (HPWOs). Do they exist. Are they really the wave of the future and the best hope for organizational survival into the next century. The myths and realities of HPWOs are explored in this publication....   [tags: High Performance Work Organizations Essays]

Strong Essays
1828 words (5.2 pages)

Multihop Communication Essay

- Fig. 1 and Fig. 2 show energy per packet consumed as we increase the number of hops for both radiating and electronic parts respectively. These results were obtained using our derived numerical model. Fig. 3 shows numerical and simulation results obtained for average energy (radiating and electronic) per packet consumed as we increase the number of hops. The percentage of energy storage spent by each individual node as we increase the number hops is shown in Fig. 4. The x-axis label shows each individual node, where SNK, S and R denote sink node, source node and relaying node respectively....   [tags: Electrical Engineering]

Strong Essays
534 words (1.5 pages)

High Performance Testing And Design Budget Essay

- Introduction As all states are facing budget cuts, it is imperative that all stakeholders work together to ensure academic success for all students. The idea then seems to be, teachers must learn to do more with less resources. Throughout the video, there were many main points made about how to cut the budget but not place student achievement at risk. For example schools must determine what expenditures could be removed and replaced with increasing innovation in the classroom. Another way is for schools to determine students’ performance on high performance testing and design budget to benefit this....   [tags: High school, Education, Teacher, College]

Strong Essays
1014 words (2.9 pages)

Essay about The Performance Of High Performance

- In order to set an example, the authors differentiated the high performance businesses by providing the three building blocks to become high performers, which are market focus and position, distinctive capabilities and high performance anatomy. Market focus and position, is the understanding of your position in the market, market leadership and the organization’s preparedness to chance course ahead of competition. Distinctive capabilities differentiate the business from others by highlighting competencies....   [tags: Management, Strategic planning]

Strong Essays
950 words (2.7 pages)

The Live Music Performances And Dance Essay

- The live music performances and dance performances showed the variety in Indian music and dance at the SLU Indian Association Fall show at Harris Stowe Auditorium. There were two live singing and instrumental music performances in the show which actually blended together American pop and Bollywood songs, and the live dance had performances that were classical, traditional dance as well as bhangara. The performances were an example as music for entertainment as they were all part of a show put on by the organization as a way of entertaining attendees, allowing the performers to show off their skills, and showing people to music and dance that they may not have seen before....   [tags: Music, Performance, Bollywood, Dance]

Strong Essays
798 words (2.3 pages)

Performance Based Pay for Teachers Essay

- "It is the mark of an educated mind to be able to entertain a thought without accepting it." - Aristotle On February 17, 2009, the American Recovery and Reinvestment Act was signed into law (US Dept of Education). According to the Executive Summary of the US Department of Education’s website the purpose of this act was to stimulate the economy, create jobs, and provide funding for education. To encourage education reform at the state level, the competitive grant program, “Race to the Top,” was implemented....   [tags: Education Tests]

Strong Essays
1217 words (3.5 pages)

Connection between Job Satisfaction and Job Performance Essay

- Introduction Achievement of a high performance level through productivity and efficiency has always played the first priority of every organizational goal and highly satisfied work force is completely essential for an organization. Satisfied employees lead to extend more effort to job performance, then work harder and better. Hence every organization tries to create a satisfied work force to operate the well- being of the organization. Employee satisfaction can be determined that employees are happy and pleased with their jobs and working environment....   [tags: high performance level, productivity]

Strong Essays
1388 words (4 pages)