Therefore, the most important research areas in the network coding theory include multiple user channel, separation theorem for network coding and privacy capacity region.

網(wǎng)絡(luò)中的信道通常是有噪聲的，目前網(wǎng)絡(luò)編碼理論的研究重點(diǎn)包括經(jīng)典多用戶信道、網(wǎng)絡(luò)-信道編碼分離和網(wǎng)絡(luò)安全編碼等問(wèn)題。

Generally, the channels in a network are interfered by noises. Therefore, the most important research areas in the network coding theory include multiple user channel, separation theorem for network coding and privacy capacity region.

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Large amount of multi-access capacity is needed for mobile and personal communications, however the channel suffers severe frequ...

移動(dòng)和個(gè)人通信的信道環(huán)境是一個(gè)時(shí)變的頻率選擇性信道，同時(shí)又是一個(gè)多址大容量的信道自偷自拍亚洲一区二区。

Large amount of multi-access capacity is needed for mobile and personal communications, however the channel suffers severe frequency selective fading.

移動(dòng)和個(gè)人通信的信道環(huán)境是一個(gè)時(shí)變的頻率選擇性信道欧美性爱亚洲色图，同時(shí)又是一個(gè)多址大容量的信道。

The wall has no support during the construction stage and the calculationbased on the national standard GB 50018-2002 (Technical code of cold-formedthin-wall steel, structures) should be reliable and safe. The crankle destabilizationof the studs with cold-formed channel section should be taken into account whencalculating the load-carrying capacity. The warpings at both ends of the sectionshould be calculated without any constraint when converting the crankledestabilization into the slenderness rationλ_w.

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The design does involved research and devisal about anti-jamming from both haedware and software, constructs many concrete anti-interference installation, such as: interference source suppression, channel coupling check, increasing capacity against disturbance of sensor, double contactor mode, digital filtering, add in blank command, install house dog, install software reap, to have a higher reliability.

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As a private mobile communication system, The digital trunkingmobile communication system was boomed in 1990's, and before this, the appliedprivate mobile communication systems in market are almost the analog systemwith analog voice and digital signalling. And there are no data referring to thesystem design and parameters chosen. It includes the wireless channel accessalgorithm of the mobile terminals, single base station capacity in large regional networks, link designing schemes between the switching control center and basestation as well as the study of the service quality for the multiple traffic. Theseindispensable parameters in design a digital trunking communication system arestudied in this dissertation and some instructive achievements can be got. To provethe correction of the theoretical study, the result was tested with the popularsystem of pan-European digital trunking communication system.

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Hu stone bridge built to facilitate the Shantou in the central and western harbor traffic, greatly enhanced the export of Shantou urban road capacity, with the Bay Bridge and drive the formation of Shantou to Hong Kong and Guangdong Province linking East and West wings of the main channel of the Pearl River Delta, now, and from Shantou City car ferry north-south transport a thing of the past.

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