Name
Abstract | ||
|---|---|---|
A Multi-User MIMO (MU-MIMO) Access Point (AP) can obtain a capacity gain by simultaneously transmitting for multiple clients. In order to select concurrent uplink (UL) users with strong channel orthogonality and thus high total capacity, channel state information (CSI) feedback from users is required. However, the inaccurate CSI feedback can seriously influence the efficiency of data transmission. Moreover, due to spontaneous uplink traffic, uplink user s- election cannot rely on the access point central assignment and needs a distributed realization instead, which makes the problem even more challenging. In this paper, we propose a CSI validation algorithm, called CVU, to detect the CSI spoofing of uplink users. CVU requires CSI at transmitting AP to set antenna gains and phases to enable simultaneous verification code distribution through beamforming. Only accurate CSI feedback can user accurately obtains its verification code. AP selects the users with accurate verification codes to obtain their data using a nonlinear equalizer. Our simulation results show that CVU significantly outperforms state-of-the-art user selection methods under CSI spoofing attack. |
Year | DOI | Venue |
|---|---|---|
2015 | 10.1145/2820716.2820726 | CSAR@SenSys |
Field | DocType | Citations |
Beamforming,Multi-user MIMO,Data transmission,Spoofing attack,Communication channel,MIMO,Real-time computing,Engineering,Channel state information,Telecommunications link | Conference | 0 |
PageRank | References | Authors |
0.34 | 14 | 4 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Wei Xi | 1 | 394 | 37.89 |
| Rong Ma | 2 | 2 | 2.41 |
| Yuanhang Cai | 3 | 0 | 0.68 |
| Kun Zhao | 4 | 0 | 5.07 |