Top Packet Core Network Secrets
- Incorporates an accompanying CD-ROM showcasing a static radio network simulator applied in MATLAB Authoritative and instructive, this textual content should have immediate attract wi-fi operators and network and terminal manufacturers.
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移动通信中，将话音信号转换为数字信号，给每组数据话音分组增加一个地址，进行扰码处理，并且将它发射到空中。
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Вся полоса частот равномерно заполнена шумоподобным сигналом.
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В. Агеевым в работе «Кодовое разделение каналов». В ней было показано, что при использовании линейных методов возможны три вида разделения сигналов: частотное, временное и компенсационное (по форме).
Base station sends check here the gained sign electrical power facts towards the transmitter and tells to increment or decrement the transmission electric power appropriately in subsequent transmissions.
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保密通信 ：扩频信号在频域上与噪声无异，增加了信号截获的难度，增强了通信的保密性。
灵活性高： 多载波系统能够更容易适应不同的数据速率和带宽要求，提供更加灵活的服务。
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называется фактором распространения или базой сигнала и определяет в известной мере верхний предел числа пользователей, поддерживаемых базовой станцией одновременно.