PMID- 30893379
OWN - NLM
STAT- MEDLINE
DCOM- 20191209
LR  - 20191217
IS  - 1932-6203 (Electronic)
IS  - 1932-6203 (Linking)
VI  - 14
IP  - 3
DP  - 2019
TI  - A-MPDU aggregation with optimal number of MPDUs for delay requirements in IEEE 
      802.11ac.
PG  - e0213888
LID - 10.1371/journal.pone.0213888 [doi]
LID - e0213888
AB  - In this paper, we propose a method that estimates an average delay of frames for 
      each queue and finds an optimal number of aggregated Medium Access Control (MAC) 
      Protocol Data Units (MPDUs) to maximize the system throughput with satisfying the 
      delay requirement of each queue when using the Aggregate MPDU (A-MPDU) 
      aggregation in IEEE 802.11ac. The delay is defined as the sum of the queuing 
      delay and the service delay. If few frames in a queue are aggregated, the frames 
      which remain in the queue for next transmissions may violate the target delay 
      because of the overhead for the next transmissions such as the backoff time, 
      Physical Layer Convergence Procedure (PLCP) preamble, and PLCP header. If many of 
      the frames in the queue are aggregated, the frames of the queue and the other 
      queues may violate their target delays because of a long transmission duration 
      and a long channel occupancy. In this paper, we obtain the average delay for each 
      queue and the optimal number of aggregated MPDUs for the delay requirement of 
      each queue in IEEE 802.11ac. At the last, we evaluate and show the performance of 
      our proposed method through simulations. The simulation results show that the 
      proposed method can estimate the average delay for each queue accurately. The 
      simulation results also show that the proposed method can obtain the violation 
      rates on the target delays less than 0.1. Furthermore, the simulation results 
      show that the proposed method can yield higher system throughput than other 
      conventional methods.
FAU - Lee, Won Hyoung
AU  - Lee WH
AD  - Department of Computer Engineering, Kwangwoon University, Seoul, Korea.
FAU - Hwang, Ho Young
AU  - Hwang HY
AUID- ORCID: 0000-0003-1816-2078
AD  - School of Computer and Information Engineering, Kwangwoon University, Seoul, 
      Korea.
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20190320
PL  - United States
TA  - PLoS One
JT  - PloS one
JID - 101285081
SB  - IM
MH  - Algorithms
MH  - Software
MH  - Wireless Technology/*instrumentation
PMC - PMC6426204
COIS- The authors have declared that no competing interests exist.
EDAT- 2019/03/21 06:00
MHDA- 2019/12/18 06:00
PMCR- 2019/03/20
CRDT- 2019/03/21 06:00
PHST- 2017/07/06 00:00 [received]
PHST- 2019/03/05 00:00 [accepted]
PHST- 2019/03/21 06:00 [entrez]
PHST- 2019/03/21 06:00 [pubmed]
PHST- 2019/12/18 06:00 [medline]
PHST- 2019/03/20 00:00 [pmc-release]
AID - PONE-D-17-25296 [pii]
AID - 10.1371/journal.pone.0213888 [doi]
PST - epublish
SO  - PLoS One. 2019 Mar 20;14(3):e0213888. doi: 10.1371/journal.pone.0213888. 
      eCollection 2019.