【摘要】 当前无线链路普遍具有误码率高的特点,导致数据包成功传输概率较低,进而对无线链路上的TCP传输造成较大影响.本文提出了一种新的校验机制,采用分块校验的方法对数据包进行验证,并采用新的方法来计算重传次数.实验表明,本校验机制可以有效提高数据包成功传输概率,进而改善了无线链路上的TCP传输性能,同时保证了多个数据流传输的公平性和数据的正确性.更多还原

【Abstract】 The problem of high BER (bit error rate) usually plagues the wireless connection,especially for TCP connections,because of the low probability that a large frame can be transmitted.To improve the performance of TCP in such a scenario,a Segment-Check method with new retransmitting mechanism is proposed.Simulation experiments conducted through extended ns-2 validated that the proposed method is fair,and could achieve higher TCP throughput.更多还原