By Michele Luglio, Cesare Roseti, Francesco Zampgnaro (auth.), Thanasis Korakis, Michael Zink, Maximilian Ott (eds.)

This ebook constitutes the lawsuits of the eighth overseas ICST convention, TridentCom 2012, held in Thessanoliki, Greece, in June 2012. Out of various submissions this system Committee ultimately chosen fifty one complete papers. those papers conceal themes corresponding to destiny web testbeds, instant testbeds, federated and massive scale testbeds, community and source virtualization, overlay community testbeds, administration provisioning and instruments for networking examine, and experimentally pushed study and consumer adventure evaluation.

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Testbeds and Research Infrastructure. Development of Networks and Communities: 8th International ICST Conference, TridentCom 2012, Thessanoliki, Greece, June 11-13, 2012, Revised Selected Papers

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2. End-user handset and base station emulation 22 R. Chertov, J. Kim, and J. Chen TB in the set K. Lets assume that each assigned TB uses the 16 Quadrature Amplitude Modulation (16QAM) modulation with a code rate of 12 . This coding when using an LTE waveform translates to 336 bits per TB1 . This would imply that the user can transmit 672 bits during subframe 0, 1008 bits during subframe 5, and 1344 during subframe 9. Since a radio emulator permits the user or the base station to transmit only the assigned number of bits during the allotted subframes, the bandwidth, jitter, and latency will be affected as a result.

TridentCom 2012, LNICST 44, pp. 18–32, 2012. c Institute for Computer Sciences, Social Informatics and Telecommunications Engineering 2012 LTE Emulation over Wired Ethernet 19 the complexity severely impacts validation and simulation times. In addition, a simulation approach requires rewriting the handset and server applications for the simulation environment. Naturally, this approach requires extensive validation to ensure that the rewritten applications follow the same behavior as their real-world counter parts.

Chertov, J. Kim, and J. Chen Table 1. 012 Table 2. 021 priority traffic after one second. Both of the priority and best-effort queues were configured to allow 64 packets before dropping any additional incoming packets. Table 2 shows the VoIP packet inter arrival times when VoIP was given priority and when it was treated the same as HTTP. The jitter values for priority and non priority cases are quite similar. The main difference between priority and non priority cases was the loss ratios. As expected, the non priority experiment produced more VoIP packet losses on the uplink.

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