Research on the Buffer Management Algorithm in DTN

Author(s):  
Fengju Liu ◽  
Xiangyu Bai
Author(s):  
Yusuf Cinar ◽  
Peter Pocta ◽  
Desmond Chambers ◽  
Hugh Melvin

This work studies the jitter buffer management algorithm for Voice over IP in WebRTC. In particular, it details the core concepts of WebRTC’s jitter buffer management. Furthermore, it investigates how jitter buffer management algorithm behaves under network conditions with packet bursts. It also proposes an approach, different from the default WebRTC algorithm, to avoid distortions that occur under such network conditions. Under packet bursts, when the packet buffer becomes full, the WebRTC jitter buffer algorithm may discard all the packets in the buffer to make room for incoming packets. The proposed approach offers a novel strategy to minimize the number of packets discarded in the presence of packet bursts. Therefore, voice quality as perceived by the user is improved. ITU-T Rec. P.863, which also confirms the improvement, is employed to objectively evaluate the listening quality.


2012 ◽  
Vol 457-458 ◽  
pp. 1317-1325
Author(s):  
Jian Wei Zhang ◽  
Bao Wei Zhang ◽  
Si Liu ◽  
Zhao Yang Li

2013 ◽  
Vol 49 (17) ◽  
pp. 1079-1081 ◽  
Author(s):  
S. Kim ◽  
T. Kim

Author(s):  
Sung-Hyung Lee ◽  
Hyun-Jin Lee ◽  
Jae-Hyun Kim ◽  
MiJeong Hoh ◽  
Sang-heon Shin ◽  
...  

Author(s):  
JiWon Kim ◽  
Kanghee Kim ◽  
ChangHo Lee ◽  
SangBang Choi

2012 ◽  
Vol 457-458 ◽  
pp. 1317-1325
Author(s):  
Jian Wei Zhang ◽  
Bao Wei Zhang ◽  
Si Liu ◽  
Zhao Yang Li

This paper analyzed the features of a new network architecture whose locator and identifier are separated, in order to improve the query and replacement efficiency of the identifier mapping, the backup of the locator/identifier mapping information needs storing in the most necessary place, which is a problem of cache management in fact .In this paper the typical cache management algorithms are analyzed firstly, and then a new aimed pushing and pre-fetching strategy is proposed according to the bidirectional interactive character of the communication activity in querying the mapping relationship, thus divided the Access Switch Router(ASR) cachespace into three section: Waiting_First_Access_Section (WFA), Frequently_Used_se- ction(FU) and Session_Duration_Section (SDU). And based on the identity mapping information reuse probability predicted by the Markov model, an information lifetime-based adaptive cache management algorithm is proposed. The simulation result shows that the performance of the buffer management algorithm proposed by this paper is better than those of the existing cache management algorithms such as LFU, LRU and LFU-LRU


Author(s):  
Sung-Hyung Lee ◽  
Hyun-Jin Lee ◽  
Jae-Hyun Kim ◽  
Hyung-Joo Lee ◽  
Mi-Jeong Hoh ◽  
...  

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