Results 121 to 130 of about 8,421 (222)
, 2007 In uplink OFDMA, carrier frequency offsets (CFO) and/or timing offsets (TO) of other users with respect to a desired user can cause multiuser interference (MUI).
Chockalingam, A, Raghunath, K
core
, 2015 Wireless networking in cyber-physical systems (CPSs) is characteristically different from traditional wireless systems due to the harsh radio frequency environment and applications that impose high real-time and reliability constraints.
Yu HB(于海斌) +3 more
core
Comparative Analysis between OFDMA and SC-FDMA: Model, Features and Applications
International Journal of Electrical Engineering and Applied Sciences, 2019 This paper represents Orthogonal Frequency Division Multiple Access (OFDMA) and Single Carrier Frequency Division Multiple Access (SCFDMA) techniques along with the Orthogonal Frequency Division Multiplexing (OFDM).
Abdullah Al-Mamun Bulbul +5 more
doaj
A Subchannel Renumbering Scheme for IEEE 802.16 OFDMA Systems
, 2013 This letter proposes a subchannel renumbering (SCR) scheme to improve frequency resource utilization in IEEE 802.16 OFDMA systems. SCR rearranges the logical subchannel numbers to derive a group of contiguous subchannels with a high burst profile such ...
Shih, Kuei-Ping +1 more
core +1 more source
Deep Reinforcement Learning-Assisted Optimization for Resource Allocation in Downlink OFDMA Cooperative Systems. [PDF]
Entropy (Basel), 2023 Tefera MK, Zhang S, Jin Z.
europepmc +1 more source
CFX: Contention-Free Channel Access for IEEE 802.11ax. [PDF]
Sensors (Basel), 2022 Lee KH, Kim D.
europepmc +1 more source
, 2011 碩士本論文考量在IEEE 802.16m OFDMA Frame架構下，提出一個Downlink頻寬管理機制來分配與規劃Downlink AAI Subframe中Burst的Subchannel 與OFDMA Symbol Time，此機制之基本概念在於針對不同使用者，配置可支援較高傳送速率的Subchannel藉以提升網路的整體傳輸效能。由於不當地分配Subchannel與OFDMA Symbol Time會造成Downlink無線資源利用率下降與Downlink AAI ...
江致平; Chiang, Chih-Ping
core
Preparing Wi-Fi 7 for Healthcare Internet-of-Things. [PDF]
Sensors (Basel), 2022 Qadri YA +5 more
europepmc +1 more source
Multiuser MIMO-OFDM Systems using Subcarrier Hopping
, 2006 Recently space division multiple access (SDMA) assisted multiple-input–multiple-output (MIMO) orthogonal frequency division multiplexing (OFDM) systems invoking multiuser detection (MUD) techniques have attracted substantial research interest, which is ...
Jiang, M, Hanzo, L
core
Simultaneous Execution of Multiple Radar Tasks using OFDMA
, 2017 We develop the notion of orthogonal frequency division multiple access (OFDMA) to enable a radar to execute multiple tasks simultaneously. OFDMA, like the betterknown orthogonal frequency division multiplexing (OFDM) radar, encodes information on ...
Hadizadehmoghaddam, Sepehr
core +1 more source