Radio communications method in a wireless local network
一种无线局域网、通信质量的技术，应用在无线局域通信网领域，能够解决减小消息传输时间周期、增大时间周期、不合理等问题
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example 1
Example 1 (see figure 2 )
[0052] Based on the actual working conditions of these devices, a preliminary allocation of the communication quality threshold H max =10dB and threshold H 0 = 3dB for a transceiver in a wireless local area network operating in accordance with the international standard IEEE 802.11. In this example, the communication quality is determined as the ratio of the received signal level to the noise level.
[0053] For example, Transceiver 5 (see figure 1 ) regularly receives and transmits information, for example, every 0.1 seconds, based on the received signal, the transceiver determines the current communication quality value Q cur . Then, the transceiver compares the resulting value Q cur with a pre-assigned threshold Q max . If the current communication quality value Q cur equal to or greater than H max (for example, Q cur =40dB), the transceiver continues to receive and transmit information, and does not perform the process of optimizing the...
example 2
Example 2 (see Figure 3)
[0059] Based on the actual working conditions of these devices, a preliminary allocation of the communication quality threshold H max = 40dB and H 0 = 5dB for transceivers in WLANs operating in accordance with the international standard IEEE 802.11a. In this example, the communication quality is initially determined as the ratio of the received signal level to the interference level.
[0060] Then, the transceiver (the transceiver that implements data reception and transmission) implements the same steps as in Example 1, but first implements Q cur and communication quality threshold H 0 comparison, then (if Q cur >H 0 ) to achieve with H max Comparison.
example 3
Example 3 (see Figure 4 )
[0061] Preliminary allocation meets the relevant conditions: H 0 1 max (In this case, N=1) the communication quality threshold H max =10 -7 , H 0 =10 -4 and an intermediate communication quality threshold H 1 =10 -5 For transceivers in WLANs operating according to the international standard IEEE 802.11b, the communication quality threshold is in the form of an error ratio. Also assign an initial time interval T between two successive optimization antenna beam processes 0 = 0.1 seconds. In this example, the acceptable error rate (which indicates how many information bits have an error) is used as the communication quality parameter.
[0062] Based on the received signal, the transceiver (a transceiver implementing data reception and transmission) periodically determines the current communication quality value Q cur , for example, every 0.1 seconds. Then, the transceiver compares the resulting value Q cur with a pre-assigned threshold H m...
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