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IEEE 802.11n (66 results), IEEE 802.11g (30 results), IEEE 802.11i (6 results), IEEE 802.11 Working Group (1 results)
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- 10 ways to prepare for a wireless rollout
- There are a number of reasons for a company to implement wireless networking. Wi-fi makes it much easier for workers to connect to the LAN from their laptops in conference rooms, break rooms, and other areas that may not have wired Ethernet jacks (or may not have enough for the...
- Blog posts 2008-03-17
- Knowing location increases 802.11 network security
- Recent innovations in 802.11 technology have positioned wireless networks as a viable option to wired Ethernet networks in an enterprise setting. 802.11n and mesh networks are two of the more visible innovations providing the necessary data rate and reliability to compete with wired networks. Another technically significant...
- Blog posts 2007-12-03
- Capacity Coverage & Deployment Considerations for IEEE 802.11g
- 802.11g is an exciting new technology that offers additional performance, while providing investment protection for 802.11b clients through backward compatibility. By using previous technologies and economies of scale, 802.11g devices are available at little or no additional cost relative to 802.11b. As such, there are many reasons to begin migrating...
- White papers 2007-12-01
- How to make the best of 802.11 multipath environments
- In a post titled Wi-Fi 101: Multipath environments and how they affect Wi-Fi propagation, I examined what happens to 802.11 RF signals when they encounter physical obstacles. I would like to take the next logical step and develop quantifiable relationships between three different Line of Sight LoS environments and the...
- Blog posts 2007-10-30
- 802.11b to 802.11g to 802.11n
- I am doing a research on these three WiFi standards. I am looking for professional in depth explaination of the differences between b and g, a nd g and n. Also, the reason why IEEE had to develop new standard because of the previous one.Get a bookor surf the web802.11b...
- Discussion threads 2007-10-15
- Wireless Network (IEEE 802.11) Policies object
- I am trying to extend wireless Schema. I am using artical from Microsoft http://www.microsoft.com/technet/net...ta_ad_ext.mspx but when i run the command on my DC i am getting error message see bleow "Add error on line 14: ReferralThe server side error is "A referral was returned from the server."0 entries modified successfully.An...
- Discussion threads 2007-09-27
- Extended Abstract: Understanding the Effect of Access Point Density on Wireless LAN Performance
- This paper presents a systematic experimental study of the effect of inter-cell interference on IEEE 802.11 performance. With increasing penetration of WiFi into residential areas and usage in ad hoc conference settings, chaotic un-planned deployments are becoming the norm rather than an exception. These networks often operate many nearby access...
- White papers 2007-09-14
- An Experimental Study on the Capture Effect in 802.11a Networks
- In wireless networks, a frame collision does not necessarily result in all the simultaneously transmitted frames being lost. Depending on the relative signal power and the arrival timing of the involved frames, one frame can survive the collision and be successfully received by the receiver. Using the IEEE 802.11a wireless...
- White papers 2007-09-10
- 802.11n: The Next Generation of Wireless Performance
- The IEEE 802.11 Working Group has been working for the last few years to standardize an upgrade to the 802.11 radio that provides a new set of capabilities dramatically improving the reliability of 802.11 communications, the predictability of 802.11 coverage, and the overall throughput of 802.11 devices. This paper describes...
- White papers 2007-08-01
- On the Performance of IEEE 802.11 Under Jamming
- This paper studies the performance of the IEEE 802.11 MAC protocol under a range of jammers that covers both channel-oblivious and channel-aware jamming. The paper studies two channel-oblivious jammers: a periodic jammer that jams deterministically at a specified rate, and a memoryless jammer whose signals arrive according to a Poisson...
- White papers 2007-07-08
- Optimizing Aggregate Throughput of Upstream TCP Flows Over IEEE 802.11 Wireless LANS
- This paper via analysis and simulation revisits the interaction between MAC contention and TCP congestion control over IEEE 802.11 WLANs, misled in the previous efforts. The results reveal that the effective number of contending wireless stations is not proportional to the number of wireless stations with an upstream TCP flow...
- White papers 2007-07-04
- The role of 802.11n in the Enterprise
- As the 802.11n standard gets closer to final ratification, Enterprises are beginning to wonder how this may impact their Wireless LAN strategy in the coming year and beyond. For organizations that may choose to deploy 802.11n, it will have serious upgrade implications for both the infrastructure and the client side...
- Blog posts 2007-06-19
- What Wireless Network Adapter Do I Get??
- I am a complete n00b to wireless networking. Which is scary because I now manage one! (Don't tell anyone at the office my secret!) Anyways, I need to buy a new wireless network adapter for my bosses laptop and I am a bit confused. Whats the difference in the letters...
- Discussion threads 2007-05-07
- what circuit we can use to transmit a OFDM signal of 802.11a?
- in 802.11a ,the signal after IFFT and inert cyclic prefix operation, it should be transmited into the channel. what circuit can be used to accomplish this task?
- Discussion threads 2007-05-06
- Scalability Analysis of Rate Adaptation Techniques in Congested IEEE 802.11 Networks: An ORBIT Testbed Comparative Study
- Recent real-world measurements in dense congested radio environments have pointed out the inefficiency of frame error-based bit-rate adaptation mechanisms, which significantly reduce network capacity by misinterpreting frame errors due to collisions. These effects are likely to be amplified with the heavy use of media applications. Fortunately, traditional SNR-based rate adaptation,...
- White papers 2007-04-26
- A first look: Verizon Wireless BroadbandAccess PC5750
- Continuing TechRepublic's look at the latest crop of wireless broadband PCMCIA cards for laptops, we take a first look at the offering from Verizon Wireless. The Qualcomm 3G card connects users to the Verizon Nation Broadband network using cell phone technology, but it can also connect using the standard 802.11...
- Image galleries 2007-03-13
- A first look: Cingular 3G LaptopConnect Sierra Wireless AirCard 875
- Continuing TechRepublic's look at the latest crop of wireless broadband PCMCIA cards for laptops, we take a first look at the offering from Cingular Wireless. The Sierra Wireless AirCard 875 connects users to the Cingular Broadband network using either cell phone technology or the standard 802.11 wireless protocol, depending on...
- Image galleries 2007-03-05
- TCP Dynamics in 802.11 Wireless Local Area Networks
- In 802.11 wireless links with disabled MAC retries, data and ACK packets within a TCP session collide resulting in packet losses. This paper shows that in this situation, certain popular optimizations of TCP (fast-recovery) worsen the performance by causing deadlocks that terminate with timeouts. The performance of optimized TCP versions...
- White papers 2007-03-01
- A Survey of WLAN QoS Systems Based on IEEE 802.11
- This paper discusses the QoS problems faced in real-time applications of Wireless LAN's WLAN environment, the essential parameters and various optimization algorithms are classified, some ideas about QoS guarantee in WLAN based on IEEE 802.11 are specifically addressed. In global market, both equipments and applications of WLAN are bullish. While...
- White papers 2007-03-01
- A first look: Sprint Mobile Broadband PCMCIA
- The Sprint Mobile Broadband card from Pantech looks pretty much like any other PCMCIA card. But this card provides high-speed access to your mobile workforce without having to worry about the typical 802.11 wireless access points. In my hometown of Louisville, KY, the Sprint Mobile Broadband service covers the entire...
- Image galleries 2007-02-13
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