灵鹊做题网英语翻译Partial packet recovery schemes are protocols designed t
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英语翻译
Partial packet recovery schemes are protocols designed to recover
packets that were received with errors.Data is divided into small
fragments,and some method is used to detect which fragments were
received correctly.The transmitter then only retransmits erroneous
fragments.Seda [8] adds an overhead of a CRC-8 and an identifier
to each block,and sends correction blocks alongside fresh blocks.
PPR [16] uses confidence information from the PHY layer instead of
a CRC to determine which bits need retransmission,and incorporates
a dynamic algorithm to determine what feedback should be sent by
the receiver.Maranello [12] again uses CRC to protect each block,
but reduces overhead by only transmitting CRCs when the packet
contains errors.
Partial packet recovery can be viewed as a finer-grained Type-
I HARQ:the PPR system sends smaller blocks,retransmitting a
block on error.The difference to non-PPR HARQ is the aggregation
of several blocks onto a single transmission,eliminating the fatesharing
of bits in the non-PPR case.
Partial packet recovery schemes are protocols designed to recover
packets that were received with errors.Data is divided into small
fragments,and some method is used to detect which fragments were
received correctly.The transmitter then only retransmits erroneous
fragments.Seda [8] adds an overhead of a CRC-8 and an identifier
to each block,and sends correction blocks alongside fresh blocks.
PPR [16] uses confidence information from the PHY layer instead of
a CRC to determine which bits need retransmission,and incorporates
a dynamic algorithm to determine what feedback should be sent by
the receiver.Maranello [12] again uses CRC to protect each block,
but reduces overhead by only transmitting CRCs when the packet
contains errors.
Partial packet recovery can be viewed as a finer-grained Type-
I HARQ:the PPR system sends smaller blocks,retransmitting a
block on error.The difference to non-PPR HARQ is the aggregation
of several blocks onto a single transmission,eliminating the fatesharing
of bits in the non-PPR case.
部分数据包恢复策略是设计用来恢复带有错误信息数据包的协议.数据被分为多个字段,用一定的方法来确认出正确接收的字段.这样发送器只需重新发送出错的字段.Seda 增加了一个CRC-8的前开销和block的识别（identifier),并且在新的block中间插入修改block. PPR利用从RHY层接受的置信代替CRC来判断哪个字节需要重新传送,同时联合使用一个动态算法来决定接受器应该发回什么样的反馈.Maranello 再次使用CRC来保护每一个block,但是当发送含有错误的数据包的时候不再发送overhead(开销）只发送CRCs.
部分数据包恢复技术可以被看做是精细版本的Type-I HARQ: PPR系统发送更小的block,重新发送出错的block.和non-PPR HARQ技术的区别是整合多个bloks在一起发送,去掉了non-PPR 技术应用中会出现的fatesharing of bit这种现象（fatesharing of bit这个太专业了实在不知道该怎么翻译）
部分数据包恢复技术可以被看做是精细版本的Type-I HARQ: PPR系统发送更小的block,重新发送出错的block.和non-PPR HARQ技术的区别是整合多个bloks在一起发送,去掉了non-PPR 技术应用中会出现的fatesharing of bit这种现象（fatesharing of bit这个太专业了实在不知道该怎么翻译）
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