preassigned multiple access

简明释义

预分配多址

英英释义

例句

1.The preassigned multiple access scheme ensures that each device has a designated time slot for communication.

该预分配多路访问方案确保每个设备都有一个指定的通信时间段。

2.In a Wi-Fi network, preassigned multiple access can help in reducing congestion during peak hours.

在Wi-Fi网络中，预分配多路访问可以帮助减少高峰时段的拥堵。

3.With preassigned multiple access, interference between users is minimized, leading to better signal quality.

通过预分配多路访问，用户之间的干扰被最小化，从而提高了信号质量。

4.In a cellular network, the use of preassigned multiple access allows for efficient resource allocation among users.

在蜂窝网络中，使用预分配多路访问可以有效地为用户分配资源。

5.The satellite communication system employs preassigned multiple access to manage bandwidth efficiently.

卫星通信系统采用预分配多路访问来有效管理带宽。

作文

In the world of telecommunications, efficient communication is vital for both individuals and organizations. One of the key concepts that enable this efficiency is known as preassigned multiple access. This term refers to a method where communication channels are allocated to users in advance, allowing multiple users to share the same communication medium without interference. Understanding preassigned multiple access is crucial for grasping how modern communication systems operate, particularly in environments with limited bandwidth.The fundamental idea behind preassigned multiple access is to optimize the use of available resources in a network. By preassigning specific channels to users, the system can reduce the chances of collisions that typically occur in random access methods. For instance, in a traditional system where users attempt to access the channel simultaneously, data packets may collide, leading to delays and the need for retransmission. In contrast, with preassigned multiple access, each user knows their designated channel, which significantly enhances the overall efficiency of the communication process.This method is particularly beneficial in scenarios where the number of users is predictable and the traffic is consistent. For example, in a corporate environment where employees regularly communicate over a dedicated network, preassigned multiple access can ensure that each employee has a reliable connection without the risk of interference from others. This not only improves communication quality but also maximizes the network's capacity.Moreover, preassigned multiple access plays a critical role in various technologies such as Time Division Multiple Access (TDMA) and Frequency Division Multiple Access (FDMA). In TDMA, time slots are assigned to different users, allowing them to transmit data in their designated time frames. Similarly, FDMA allocates different frequency bands to users, ensuring that they can operate simultaneously without crossing signals. Both of these methods exemplify the principles of preassigned multiple access, highlighting its importance in the design of efficient communication systems.However, it is important to note that while preassigned multiple access offers numerous advantages, it may not be suitable for all situations. In dynamic environments where user demand fluctuates unpredictably, fixed assignments can lead to underutilization of resources. In such cases, dynamic allocation methods might be more appropriate, allowing the system to adapt to changing traffic patterns. Nevertheless, for stable and predictable scenarios, preassigned multiple access remains a powerful tool for enhancing communication efficiency.In conclusion, preassigned multiple access is a fundamental concept in telecommunications that facilitates efficient resource usage and communication among multiple users. By assigning channels in advance, this method minimizes collisions and maximizes the network's capacity, making it an essential strategy in various applications. As technology continues to evolve, understanding and implementing preassigned multiple access will be crucial for developing robust communication systems that meet the demands of modern society.

在电信领域，高效的通信对个人和组织至关重要。使这种效率得以实现的关键概念之一被称为预分配多重接入。这个术语指的是一种方法，其中通信频道事先分配给用户，使多个用户能够共享同一通信媒介而不发生干扰。理解预分配多重接入对于掌握现代通信系统的运作至关重要，尤其是在带宽有限的环境中。预分配多重接入背后的基本思想是优化网络中可用资源的使用。通过预先分配特定频道给用户，系统可以减少通常在随机接入方法中发生的碰撞。例如，在传统系统中，用户同时尝试访问频道，数据包可能会发生碰撞，导致延迟和重新传输的需要。相比之下，使用预分配多重接入，每个用户都知道他们指定的频道，这显著提高了通信过程的整体效率。这种方法在用户数量可预测且流量一致的场景中特别有利。例如，在一个企业环境中，员工定期通过专用网络进行通信，预分配多重接入可以确保每位员工都有可靠的连接，而无需担心其他人的干扰。这不仅改善了通信质量，还最大化了网络的容量。此外，预分配多重接入在多种技术中发挥着关键作用，例如时分多重接入（TDMA）和频分多重接入（FDMA）。在TDMA中，时间槽分配给不同的用户，使他们能够在指定的时间框架内传输数据。同样，FDMA将不同的频段分配给用户，确保他们可以同时操作而不会交叉信号。这两种方法都体现了预分配多重接入的原则，突显了其在高效通信系统设计中的重要性。然而，值得注意的是，尽管预分配多重接入提供了许多优势，但并不适合所有情况。在用户需求不可预测波动的动态环境中，固定分配可能导致资源的未充分利用。在这种情况下，动态分配方法可能更为合适，使系统能够适应变化的流量模式。尽管如此，对于稳定和可预测的场景而言，预分配多重接入仍然是提升通信效率的强大工具。总之，预分配多重接入是电信中的一个基本概念，有助于促进多用户之间的高效资源使用和通信。通过提前分配频道，这种方法最小化了碰撞并最大化了网络的容量，使其成为各种应用中的重要策略。随着技术的不断发展，理解和实施预分配多重接入将对开发满足现代社会需求的强大通信系统至关重要。