Báo cáo hóa học: " Correction: Handoff optimization in 802 11 wireless networks" potx

Ngày tải lên: 21/06/2014, 01:20

... fair and efficient wireless access in challenging interference scenarios, for example, multiple networks deployed in the same geographical area and sharing a common band. In 1976, an ALOHA ... Detection (CD) to an unslotted ALOHA channel to define the CSMA/CD protocol used in the original Ethernet 802. 3 cable standard. The 802. 11 WiFi wireless standard modified the CD p...

Ngày tải lên: 21/06/2014, 17:20

... Access Handoff optimization in 802. 11 wireless networks IP Hsieh and Shang-Juh Kao * Abstract In 802. 11 wireless networks, a complete handoff procedure for a mobile node requires access point (AP) ... access point (AP). In order to reduce the time in processing a handoff, its operations must be integrated across layers. Even though lower-laye r protocols involved i...

Ngày tải lên: 21/06/2014, 02:20

Ngày tải lên: 19/06/2014, 22:20

... at the Indian Insti- tute of Science in Spring 2003. His research interests are in various aspects of wireless data transmission including system modeling and performance, signal processing, and ... at the Wireless Infor- mation Network Laboratory (WINLAB). He was a Visiting Fac- ulty Fellow in the Department of Electrical Engineering, Princeton University, in Fall 2002 and a Visi...

Ngày tải lên: 23/06/2014, 00:20

... Journal of Inequalities and Applications 2 011, 2 011: 62 http://www.journalofinequalitiesandapplications.com/content/2 011/ 1/62 Page 14 of 17 2. Preliminaries In this section, we recall some definitions ... t ) ≥ L∗ Q ξ , ζ (4 n x,4 n y,4 4n t). (7 :11) Taking the limit as n ® ∞, we find that Q satisfies (1.1) for all x, y Î X. Taking the limit as n ® ∞ in (7.9), we obtain (7.4). To pr...

Ngày tải lên: 20/06/2014, 22:20

... paper examines error control coding (ECC) use in wireless sensor networks (WSNs) to determine the energy efficiency of specific ECC implementations in WSNs. ECC provides coding gain, resulting in transmitter ... throughput. Decoder implementation Coding gain in dB P max in mW R max in Mbps V dd in V Eb dec in nJ/bit Process size in μm (255,239) RS digital 2 58 160 1.8 0 .119...

Ngày tải lên: 22/06/2014, 22:20

... on Wireless Communications and Networking 2 011, 2 011: 148 http://jwcn.eurasipjournals.com/content/2 011/ 1/148 Page 6 of 12 radios (R 1 and R 2 ) supporting 802. 11a and 802. 11b/g and operating in ... area, in IEEE PIMRC, pp. 1–5 (2007) 2. T Farnham, M Sooriyabandara, C Efthymiou, Enhancing multimedia streaming over existing wireless LAN technology using the unified link layer AP...

Ngày tải lên: 20/06/2014, 22:20

... Journal on Wireless Communications and Networking 13 [6] S. Szott, M. Natkaniec, R. Canonico, and A. R. Pach, “Impact of contention window cheating on single-hop IEEE 802. 11e MANETs,” in Proceedings ... collision handling Transmission attempt Figure 1: Mapping to ACs in EDCA [1]. Table 1: Default EDCA parameters of IEEE 802. 11 HR/DSSS (802. 11b). Access category (i)AIFSN i CW MIN...

Ngày tải lên: 21/06/2014, 11:20

... receiving antenna at node 0 and the trans- mitting antenna at (interfering) node i are pointing to each other, ξ i =  if the receiving antenna at node 0 is pointing to node i who is however pointing ... receiver are pointing to each other. ξ =  ( < 1) if the transmitter is pointing to the receiver but the receiver is not pointing to the transmitter (or if the receiver is pointing to the...

Ngày tải lên: 22/06/2014, 19:20